Super Sprouter Quad Thick Tray Insert w/ Holes

The Super Sprouter Quad Thick Tray Insert with Holes is a 10×20 propagation tray insert built for repeated use. Unlike standard vacuum-formed inserts that flex and crack under load, this one is injection molded to four times the wall thickness — so it holds its shape whether you’re carrying a flat of rooted clones or stacking trays for storage. The perforated bottom lets water drain freely without pooling under plugs or cubes.

Super Sprouter Quad Thick Tray Insert w/ Holes Specifications

All specifications below are sourced from the manufacturer canonical data and product attributes.

Why Choose Super Sprouter Quad Thick Tray Insert w/ Holes

Most 10×20 propagation trays are vacuum formed — a fast manufacturing method that produces thin, flexible walls. That works fine for single use, but the tray deforms when loaded with a full flat of media and cuttings, making it hard to carry without spilling. The Super Sprouter Quad Thick insert takes a different approach.

• Injection molded construction: Injection molding produces denser, more uniform plastic walls than vacuum forming. The result is a tray that resists flex even when fully loaded.
• Four times the wall thickness: The manufacturer describes this insert as four times thicker than a standard 10×20 tray. You do not need to double or triple stack inserts to get adequate rigidity — one tray does the job.
• Perforated bottom for drainage: The bottom is perforated so excess water drains freely when the insert sits inside a solid outer tray. This prevents water from pooling under plugs, which can cause root suffocation during propagation.
• Reusable and durable: The heavier construction means this insert holds up to repeated wash cycles and reuse across multiple propagation runs, reducing per-use cost over time.
• Standard 10×20 footprint: Fits inside any standard 10×20 solid outer tray. Compatible with the broad range of dome and humidity cover options built for this tray size.

Best Uses for Super Sprouter Quad Thick Tray Insert w/ Holes

This tray insert is designed for propagation environments where trays go through frequent handling and reuse. It works inside a solid outer tray, which collects drainage water and keeps the growing area clean.

• Seed starting: Fill cells with a starter medium such as rockwool cubes, rapid rooter plugs, or peat pellets. The perforated bottom lets bottom-watering reach plugs from below through the outer tray.
• Stem cutting propagation: Place cuttings in neoprene inserts, rockwool cubes, or small pots inside the tray. The rigid walls hold the insert flat under the weight of a full flat of clones.
• Commercial and high-volume propagation: Operations running multiple propagation cycles per month benefit most from a reusable insert — the heavier construction withstands repeated sanitizing and handling without cracking at the corners.
• Nursery and greenhouse use: The standard 10×20 footprint works on nursery benches designed for this flat size. Use with a matching solid outer tray to catch runoff and maintain a clean bench surface.
• Pairing with grow media: Works well with a wide range of propagation substrates. For growers using pre-formed starter plugs, the tray holds a 50-cell or 72-cell flat directly. If you are working with loose media in larger containers, a small fabric pot can sit inside the insert for the early rooting phase.

Sources & Further Reading