AutoPot Garden Trays – 4’ x 2’ Giant Plus

The AutoPot 4′ x 2′ Giant Plus Garden Tray (SKU: G82B) is a large-format injection-molded tray made from recycled polypropylene, measuring 47 inches long by 21.5 inches wide by 2 inches high. Designed specifically to fit Danish Trolley shelving systems, it serves as a base tray for propagation racking when combined with the AutoPot easy2GO Kit to create a gravity-fed, self-watering propagation system that requires no pumps or electricity. Manufactured by AutoPot Watering Systems, a brand built around power-free indoor and outdoor irrigation.

AutoPot 4′ x 2′ Giant Plus Garden Tray Specifications

The specifications below are drawn from the canonical supplier record (Greener Gardens, supplier SKU 162305749579), the AutoPot USA manufacturer listing (SKU G82B), and confirmed dimensions from third-party retailer listings at discountedhydroponics.com. The 4′ x 2′ Giant Plus is the rectangular variant in the AutoPot Garden Tray range, distinct from the square 2′ x 2′, 2.5′ x 2.5′, and 3.3′ x 3.3′ trays sold on the same supplier page.

Specification	Value
SKU	G82B
Brand / Manufacturer	AutoPot Watering Systems (AutoPot Global UK Ltd)
Dimensions (external)	47″ L × 21.5″ W × 2″ H (1200 mm × 550 mm × 50 mm)
Weight	10 lbs (4,536 g)
Material	Recycled polypropylene, injection molded
Color	Black
Construction	Flat-based garden tray without drainage channels
Danish Trolley fit	Yes — designed to fit standard Danish Trolley shelving
easy2GO Kit compatible	Yes — combines with AutoPot easy2GO Kit for gravity-fed self-watering
CocoMat compatible	Yes — fits two Coco Mat Large inserts
easy2Propagate lid compatible	Yes — pairs with easy2Propagate lid (4 adjustable vents, 8″ height)

Why Choose the AutoPot 4′ x 2′ Giant Plus Garden Tray

The reasons below are drawn from the supplier description, the AutoPot USA product listing, and the research conducted for this product. They describe what makes this specific tray useful for growers building propagation and irrigation setups around Danish Trolley racking.

• Purpose-built for Danish Trolley shelving systems. The 4′ x 2′ Giant Plus Garden Tray is specifically dimensioned to fit Danish Trolley shelving, the standard rolling rack used in commercial nurseries, garden centers, and propagation facilities. The 47-inch by 21.5-inch footprint slides onto a standard Danish Trolley shelf without modification. This is not a generic garden tray that happens to fit — it was designed around this specific rack system. Growers who already use Danish Trolleys in their propagation workflow gain a tray that integrates directly into their existing infrastructure without shimming, cutting, or adapting.
• Integrates with the AutoPot easy2GO Kit for gravity-fed self-watering. The supplier description specifically identifies this tray as ideal for combining with the AutoPot easy2GO Kit to create a propagation racking system. The easy2GO system uses gravity-fed water delivery from a reservoir — no pumps, no electricity, no timers. Water flows through the system and into the tray only as the plants consume it. For propagation setups running dozens or hundreds of cuttings across multiple rack tiers, this eliminates the labor of hand-watering each shelf and the infrastructure complexity of powered drip systems on rolling racks.
• Accepts two Coco Mat Large inserts for capillary irrigation. The tray’s interior accommodates two AutoPot Coco Mat Large inserts, which function as a capillary mat for distributing water evenly across the tray surface. Seedlings, cuttings, and small potted plants placed on the Coco Mats draw water upward through the mat fibers by capillary action, providing consistent bottom watering without standing water or manual overhead irrigation. This is particularly valuable for propagation, where uniform moisture delivery directly affects rooting rates and consistency across a large batch of cuttings.
• Compatible with the easy2Propagate lid for controlled-environment propagation. The research confirms that this tray pairs with the AutoPot easy2Propagate lid, which features four large adjustable vents, an 8-inch lid height, and four quarter-inch piping ports for AQUAvalve integration. The combination of the Giant Plus tray and the easy2Propagate lid creates a self-contained, humidity-controlled propagation chamber that can sit on a Danish Trolley shelf and receive automated watering from the easy2GO system. This is a complete propagation solution built from modular AutoPot components.
• Made from recycled polypropylene. The tray is injection molded from recycled polypropylene, consistent with the material used across AutoPot’s garden tray range. Polypropylene is chemically resistant to the nutrient solutions and pH-adjusted water commonly used in hydroponic and propagation environments. The recycled content reduces the environmental footprint of the product without compromising structural integrity or chemical resistance.

Best Uses for the AutoPot 4′ x 2′ Giant Plus Garden Tray

The use cases below are derived from the supplier description, the product’s physical specifications, its compatibility with AutoPot system accessories, and the category context (Hydroponic Systems & Water Management). The 4′ x 2′ form factor and Danish Trolley compatibility distinguish this tray from the square variants in the same product range.

• Commercial propagation on Danish Trolley racking. The primary use case identified in the supplier description is propagation racking. A Danish Trolley loaded with Giant Plus trays on multiple shelves creates a high-density, vertically organized propagation station. Each shelf becomes an independent propagation zone when paired with the easy2GO Kit and Coco Mats. Nurseries, garden centers, and commercial propagators who already use Danish Trolleys gain an immediate self-watering upgrade by adding Giant Plus trays and easy2GO accessories to their existing rack fleet.
• Self-watering seed starting and cutting propagation. The tray’s flat base and 2-inch depth, combined with Coco Mat capillary inserts, provides a consistent bottom-watering surface for seed trays, cell packs, and individual propagation pots. The shallow 2-inch profile is well-suited for propagation applications where plants need consistent moisture from below without standing in deep water. When paired with the easy2GO Kit, the system refills automatically from a gravity-fed reservoir as plants consume water.
• Automated watering for small plant displays in retail environments. The supplier description identifies the tray as useful for plant irrigation display trays in garden centers. A Giant Plus tray on a Danish Trolley shelf in a retail setting keeps small potted plants watered automatically through the easy2GO system, reducing staff watering labor and ensuring that display plants remain healthy between retail shifts. The tray’s clean rectangular form factor presents well in a customer-facing environment.
• Base tray for container plants on benches and racks. Even without the easy2GO Kit, the Giant Plus tray functions as a simple containment tray for container plants on greenhouse benches, patio tables, or indoor shelving. The 2-inch depth catches irrigation runoff and prevents water from reaching the underlying surface. The 47-inch by 21.5-inch footprint accommodates a row of small to medium containers along its length.
• Drip tray and spillage containment for grow-room use. The rectangular footprint and flat construction make the tray useful as a drip tray beneath hydroponic equipment, nutrient mixing stations, or other water-handling setups in a grow room. The tray catches spills, drips, and condensation, protecting floors and surfaces from moisture damage. If your grow room includes an Active Aqua air pump or similar water-handling equipment, placing them over a containment tray is good practice for managing incidental moisture.

AutoPot 4′ x 2′ Giant Plus Tray vs. Bootstrap Farmer Grow Rack Flood Tray

The Bootstrap Farmer Grow Rack Flood Tray (Shallow Water 2′ x 4′) is the closest direct competitor to the AutoPot Giant Plus in the rectangular grow-rack tray category. Both are designed for rack-based propagation and growing, but they target different systems and workflows. The comparison below is drawn from the research conducted for this product, using publicly available specifications from both manufacturers.

Dimensions and fit: The AutoPot Giant Plus measures 47 inches long by 21.5 inches wide by 2 inches high and is specifically designed to fit Danish Trolley shelving. The Bootstrap Farmer tray measures 45.5 inches long by 25.5 inches wide by 3.5 inches high and is designed for standard 18-inch-wide chrome wire shelving racks (the tray sits on top of or across the wire shelf). The two trays target different racking systems. A grower using Danish Trolleys should use the AutoPot; a grower using chrome wire shelving should consider the Bootstrap Farmer.

Depth and water capacity: The Bootstrap Farmer tray is deeper at 3.5 inches compared to the AutoPot’s 2 inches. The deeper profile accommodates flood-and-drain (ebb and flow) irrigation cycles where the tray needs to hold a meaningful volume of water during the flood phase. The AutoPot Giant Plus is shallower because it is designed for capillary mat and gravity-drip systems, not flood-and-drain. For propagation setups using bottom watering via Coco Mats and the easy2GO Kit, the 2-inch depth is sufficient and avoids the weight penalty of a deeper water volume on each shelf tier.

Drainage and irrigation integration: The Bootstrap Farmer tray includes built-in drainage channels and is designed for active flood-and-drain systems that require a pump, timer, and reservoir plumbing. The AutoPot Giant Plus has no drainage channels and is designed for passive, gravity-fed irrigation through the easy2GO system. The AutoPot approach requires no electricity and no pumps — a significant practical advantage when running irrigation on a multi-shelf rolling rack where electrical connections and plumbing at each tier add complexity and failure points.

Weight: The AutoPot Giant Plus weighs 10 lbs. The Bootstrap Farmer tray weighs 88 lbs — nearly nine times heavier. On a Danish Trolley or wire shelf rack that supports multiple tiers of trays, the cumulative weight difference is substantial. A six-shelf rack loaded with Bootstrap Farmer trays adds over 500 lbs of tray weight alone before accounting for plants, media, and water.

Price: The AutoPot Giant Plus is priced significantly lower than the Bootstrap Farmer tray, which retails at approximately $104.99 per unit. For growers outfitting multiple shelves across multiple racks, the price difference per tray compounds quickly. A ten-tray setup with Bootstrap Farmer trays costs over $1,000 in trays alone; the same number of AutoPot Giant Plus trays costs roughly half that amount.

Manufacturing origin: The Bootstrap Farmer tray is manufactured in the USA. The AutoPot Giant Plus is manufactured by AutoPot Global UK Ltd. Both use injection-molded construction, but the AutoPot uses recycled polypropylene while the Bootstrap Farmer’s material composition is not specified in the same way.

Which tray fits your setup: If you are running Danish Trolley racking with gravity-fed AutoPot irrigation, the Giant Plus is the purpose-built choice. If you are running chrome wire shelving with an active flood-and-drain system, the Bootstrap Farmer tray is designed for that workflow. The two products solve the same general problem — rack-mounted propagation trays — through different system architectures.

Compatibility & Operating Range

The compatibility information below is derived from the supplier description, the AutoPot USA product listing, and the research conducted on AutoPot system accessories. The Giant Plus tray is designed as a component in a modular system rather than a standalone product, so its compatibility with other AutoPot accessories is a central feature.

• Danish Trolley shelving: The tray is specifically dimensioned to fit Danish Trolley shelving systems, the standard rolling rack used in commercial nurseries, garden centers, and propagation facilities. Danish Trolleys (also called Danish carts or flower trolleys) use standardized shelf dimensions that accommodate the Giant Plus tray’s 47-inch by 21.5-inch footprint. Verify your specific trolley’s shelf dimensions before ordering, as some non-standard or regional variants may differ slightly from the standard Danish Trolley specification.
• AutoPot easy2GO Kit: The supplier description identifies the easy2GO Kit as the primary irrigation accessory for this tray. The easy2GO system delivers gravity-fed water from a reservoir into the tray via tubing and a flow controller. No electricity, pumps, or timers are required. The water level in the tray is maintained automatically as plants consume moisture. This makes the Giant Plus tray a practical base for multi-tier propagation systems on Danish Trolley racks, where running powered irrigation to each shelf tier would add significant complexity.
• AutoPot Coco Mat Large: The research confirms that two Coco Mat Large inserts fit inside the Giant Plus tray. The Coco Mats function as capillary mats, distributing water evenly across the tray surface by wicking moisture from the water layer beneath them. Seedlings, cuttings, and small pots placed on the Coco Mats receive consistent bottom watering through capillary action. The Coco Mat material is biodegradable and can be composted after its useful life.
• AutoPot easy2Propagate lid: The tray pairs with the AutoPot easy2Propagate lid to create a sealed propagation chamber. The lid features four large adjustable vents for humidity control, an 8-inch internal height to accommodate plant growth during the rooting phase, and four quarter-inch piping ports that allow AQUAvalve integration for automated water delivery inside the chamber. This combination is designed for high-humidity cutting propagation where consistent moisture and airflow control are essential for rooting success.
• Standard cell packs and propagation trays: The 47-inch by 21.5-inch internal area accommodates standard nursery cell packs, 1020 propagation trays, and small individual pots arranged in rows along the tray’s length. The 2-inch tray depth provides clearance beneath standard cell packs for water to pool or for a Coco Mat to sit beneath them without lifting the cell packs above the tray rim.
• Water quality and nutrient solutions: The recycled polypropylene construction is chemically resistant to standard hydroponic nutrient solutions, pH-adjusted water, and common horticultural additives. The tray can be used with plain water, dilute nutrient solutions for propagation-stage feeding, or as a passive catchment beneath containers being fed from above. For growers monitoring their irrigation water quality, an Apera GroStar EC calibration kit ensures your conductivity meter is reading accurately when mixing nutrient solutions for propagation systems.

Usage Guidelines

The AutoPot 4′ x 2′ Giant Plus Garden Tray is a passive component with no moving parts or controls. Usage guidance focuses on placement, integration with AutoPot accessories, and maintenance. The notes below cover the most common configurations growers use with this tray.

Standalone use as a containment tray: At its simplest, the Giant Plus tray functions as a flat-bottomed containment surface for pots, cell packs, or propagation trays on any table, bench, or shelf. Place the tray on a level surface, arrange your containers inside it, and water from above as you normally would. The 2-inch depth catches runoff and prevents water from reaching the underlying surface. Empty the tray periodically if runoff accumulates faster than it evaporates, particularly in humid environments where evaporation is slow.

Capillary mat watering with Coco Mats: For bottom watering without the easy2GO Kit, place one or two Coco Mat Large inserts in the tray, add water to the tray until the Coco Mats are saturated but not floating, and set your propagation trays or small pots on top of the mats. The plants draw water upward through the capillary mat as they need it. Monitor the water level in the tray and refill manually when the mats begin to dry out at the edges. This method works well for seed starting and cutting propagation where consistent moisture matters but full automation is not yet needed.

Automated watering with the easy2GO Kit: Connect the easy2GO Kit’s water delivery tubing to a gravity-fed reservoir (positioned above the tray level), run the tubing into the tray, and set the flow controller to maintain a shallow water layer in the tray. The system refills the tray automatically as plants consume water through the Coco Mats. On a Danish Trolley with multiple tiers, each shelf can run its own tray-and-easy2GO configuration from a single elevated reservoir, provided the tubing lengths and flow rates are managed to deliver water to all tiers. Check the reservoir level daily during periods of active plant growth, as a multi-tier propagation setup can consume several gallons per day depending on plant count and environmental conditions.

Propagation chamber configuration with easy2Propagate lid: Seat the easy2Propagate lid over the filled Giant Plus tray to create a humidity dome. Open one or two of the four adjustable vents slightly during the initial rooting period to allow some air exchange while maintaining high humidity inside the chamber. As cuttings begin to root and harden off, gradually open the remaining vents to increase airflow and reduce humidity. The 8-inch lid height provides clearance for most propagation-stage cuttings. If your cuttings are taller than the lid height, they are likely past the propagation stage and ready for transplant into individual containers.

Water level management: The tray’s 2-inch depth means the maximum water volume is relatively shallow. For capillary mat systems, maintain a water depth of approximately half an inch to one inch — enough to keep the Coco Mats saturated without submerging the bottoms of cell packs or pots sitting on the mats. For bare-tray containment use, keep the water level well below the bottoms of any containers to prevent root suffocation from standing water. Empty accumulated runoff promptly if you are using the tray purely as a drip catch beneath top-watered containers.

Cleaning and maintenance: Rinse the tray with clean water between propagation cycles. Remove any mineral deposits, algae, or root debris that has accumulated on the tray surface. For a more thorough clean, scrub with a dilute hydrogen peroxide solution (3% household peroxide works well) and rinse thoroughly before reuse. The recycled polypropylene construction is durable and resistant to cracking under normal handling, but avoid dropping the tray on hard surfaces when it is cold, as polypropylene becomes more brittle at low temperatures.

Storage: The flat tray design allows for compact stacking when not in use. Stack trays flat in a dry location away from prolonged direct sunlight during off-season storage. While the polypropylene material has reasonable UV resistance, extended exposure to direct sun will eventually degrade any polymer. Stacking multiple trays with a protective sheet between them prevents surface scratching if the trays are moved frequently in storage.

How to Set Up the AutoPot 4′ x 2′ Giant Plus Garden Tray

The Giant Plus tray requires no assembly. The steps below cover initial setup for three common configurations: standalone containment, capillary mat watering, and fully automated propagation with the easy2GO Kit. Choose the configuration that matches your setup.

1. Inspect the tray on arrival. Remove the tray from its packaging and inspect it for cracks, warping, or manufacturing defects. The injection-molded polypropylene should have a uniform flat base with no visible deformations. If the tray arrived via LTL freight (pallet shipment), check the edges and corners for shipping damage before signing the delivery receipt.
2. Choose your placement surface. For Danish Trolley use, slide the tray onto a shelf tier with the 47-inch dimension running along the shelf length. Verify that the tray sits flat and stable on the shelf with no overhang that could cause tipping when loaded. For bench or table use, select a level, sturdy surface that can support the weight of the tray plus water plus plants. A fully loaded tray with a shallow water layer and a full set of propagation pots can weigh 20 to 30 lbs depending on configuration.
3. Level the tray. Confirm that the tray is level by adding a small amount of water and watching whether it pools evenly across the tray surface or runs to one side. An unlevel tray will cause uneven water distribution, which means plants on the high side dry out faster while plants on the low side sit in deeper water. Shim the underlying shelf or surface as needed to achieve a level tray.
4. For capillary mat watering: install Coco Mats. Place one or two AutoPot Coco Mat Large inserts into the tray, covering the flat base. The mats should lie flat without bunching or overlapping. Add water to the tray until the mats are fully saturated and a thin layer of water (approximately half an inch) remains visible around the mat edges. The mats will darken in color as they absorb water. Set your cell packs, propagation trays, or small pots directly on top of the saturated Coco Mats.
5. For easy2GO automated watering: connect the kit. Position your gravity-fed water reservoir above the tray level (on a higher shelf or on a stand beside the rack). Connect the easy2GO Kit’s delivery tubing from the reservoir to the tray. Set the flow controller to maintain a shallow water layer in the tray. Run the system for an hour without plants to verify that water flows into the tray and maintains the target level. Then install Coco Mats and plants as in step 4.
6. For easy2Propagate lid: seat the dome. If using the easy2Propagate lid, place it over the loaded tray after plants and Coco Mats are in position. Verify that the lid seats securely on the tray rim. Open one or two of the four adjustable vents for initial air exchange. Connect AQUAvalve piping through the lid’s quarter-inch ports if your setup uses valve-controlled water delivery inside the chamber.
7. Monitor and adjust during the first 24 to 48 hours. Check the water level in the tray at least twice during the first day. If using the easy2GO Kit, verify that the reservoir is dispensing water at the correct rate to maintain the target water level. If hand-watering with Coco Mats, note how quickly the plants consume the initial water charge to establish your refill schedule. Adjust vent positions on the easy2Propagate lid based on observed humidity levels inside the chamber — condensation on the lid interior indicates high humidity; no condensation may indicate that vents should be partially closed.
8. Establish an ongoing maintenance routine. Check reservoir levels daily during active growing periods. Inspect Coco Mats weekly for signs of degradation, algae growth, or root penetration from above. Clean the tray between propagation cycles by rinsing with clean water and scrubbing any mineral deposits. Replace Coco Mats when they begin to break down or when algae accumulates faster than cleaning can remove it.

Sources & Further Reading