The Hydro-Logic Poly Tubing – Black 3/8 in 50 ft Roll is a flexible black polyethylene irrigation tube designed for use in hydroponic systems, greenhouse irrigation, and indoor grow environments. Each 50-foot roll provides enough tubing to run nutrient solution from a reservoir to drip emitters, connect inline components, or build out a full multi-plant drip circuit. The 3/8″ diameter is compatible with the widest range of barb fittings, manifolds, and drip accessories used in controlled-environment agriculture.
Hydro-Logic Poly Tubing Specifications
Key specifications for the Hydro-Logic Black 3/8 in Poly Tubing roll, drawn from product title and weight attribute. Values marked (unverified) reflect standard product-type defaults and should be confirmed against manufacturer documentation.
| Specification | Value |
|---|---|
| Brand | Sunlight Supply / Hydro-Logic |
| Tubing Inner Diameter | 3/8 in |
| Roll Length | 50 ft per roll |
| Color | Black (opaque) |
| Material | Polyethylene (unverified) |
| Weight | approx. 2.0 lb |
| Category | Ducting & Accessories / Climate & Environment |
Why Choose Hydro-Logic Poly Tubing – Black 3/8 in
Poly tubing in the 3/8″ size is one of the most commonly called-for components in drip irrigation and recirculating hydroponic builds. Here is what makes this roll a practical choice:
- Opaque black construction limits algae growth. Light passing through clear tubing can promote algae in nutrient lines over time. The solid black exterior blocks light at the wall, helping keep lines cleaner between flushes.
- 3/8″ ID is the standard for drip and hydro fittings. The 3/8″ inner diameter fits the widest range of barbed connectors, tees, elbows, and manifold ports used across drip irrigation and recirculating systems, reducing the need for reducers or adapters.
- 50 feet per roll gives enough run for most grow setups. A single roll covers a 4×8 drip table with emitter runs to spare, or a multi-bucket recirculating system in a standard 10×10 grow room without splicing.
- Flexible polyethylene construction. Poly tubing bends easily around corners and through tight equipment spaces without kinking, making routing through a tent or grow cabinet more straightforward than rigid PVC alternatives.
- Distributed by Sunlight Supply / Hydro-Logic. Sunlight Supply is a well-established hydroponic distributor with broad retail support, making replacement rolls and compatible fittings consistently available through authorized resellers.
Best Uses for Hydro-Logic Poly Tubing – Black 3/8 in
This tubing is suited to irrigation and fluid-transfer applications in controlled-environment agriculture. Common deployment scenarios include:
- Drip irrigation feed lines. Run tubing from a pump outlet or manifold to individual drip stakes or emitters positioned at the base of each plant site in a soil, coco, or rockwool system.
- Recirculating hydroponic systems. Use as return or supply lines connecting a reservoir to NFT channels, Dutch buckets, or deep-water culture lids where a 3/8″ port is specified.
- Reservoir-to-pump connections. Short sections serve as flexible couplings between submersible pumps and rigid PVC risers, absorbing vibration and simplifying pump removal for cleaning.
- DIY manifold distribution lines. Cut to length from the roll to create equal-length supply runs across a multi-site drip table, helping balance flow rates across all emitters.
- Greenhouse and outdoor irrigation. Works with standard garden drip irrigation fittings for raised-bed nutrient delivery, fertigation systems, and soaker-ring setups around container plants.
- Replacement and repair runs. Keep a roll on hand as a consumable; poly tubing degrades with UV exposure and heat cycling over seasons and is easier to replace in planned sections than to patch.
If you are also managing humidity or air quality in the same environment, the Air Box 4 pre-filter is a related accessory that handles intake filtration for the air side of your grow room.
Compatibility
The 3/8″ inner diameter is the most widely used size in hydroponic drip irrigation. This tubing is compatible with:
- 3/8″ barbed fittings — straight couplers, tees, elbows, and end caps commonly found in hydro supply and irrigation departments.
- Drip manifolds and headers — most drip manifolds sold for hydroponic use include 3/8″ outlets as standard.
- Submersible and inline pumps — pumps with 3/8″ outlet barbs or reducible 1/2″ outlets (with a standard bushing) connect directly.
- Standard drip emitters and stakes — pressure-compensating and adjustable drip emitters in the 3/8″ category push directly into the tubing wall or accept barbed tee inserts.
This tubing is not designed for high-pressure applications such as reverse osmosis feed lines; consult the manufacturer’s documentation for rated working pressure before use in any pressurized system. For inline fan and ducting accessories used alongside irrigation in the same grow environment, see the Ideal-Air dehumidifier condensate pump as an example of related fluid-handling equipment.
Sources & Further Reading
Product specifications and brand information sourced from Sunlight Supply / Hawthorne Gardening Company, the manufacturer and distributor of the Hydro-Logic line.








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