T.O. Plastics Square Pot Irrigation Tray - 15-Cell (3×5) - For 450 Series Pots - 12.88in × 21.19in × 2.13in - 50-Pack

Square Pot Irrigation Tray for Even Bottom-Up Watering, 450 Series

Watering a bench of pots from overhead can wash out media, wet foliage, and apply water unevenly across the tray. T.O. Plastics built this irrigation tray to hold water at the pot base instead, giving 450 Series round or square pots a consistent, even water supply from below rather than depending on overhead spray to reach every pot the same amount.

The 15-cell (3x5) layout at 12.88in W x 21.19in L x 2.13in D holds a full bench section of 450 Series pots for bottom-up watering, shipping 50 per case for commercial-scale benching.

Key Features & Benefits

• Bottom-up irrigation design — supplies water evenly to pots from below rather than relying on overhead spray coverage.
• 15-cell (3x5) layout — holds a full section of 450 Series round or square pots per tray.
• Compatible with 450 Series pots — fits both round and square pot styles in the same tray.
• 50-pack case — supports outfitting a full bench run in one order.

Who Should Use This Tray

This fits growers running 450 Series pots on irrigation benches who want even, bottom-up watering across every pot in a section rather than uneven overhead coverage.

About T.O. Plastics

For more than 75 years, T.O. Plastics has thermoformed trays and containers for horticulture, life sciences, and industrial customers out of Clearwater and Otsego, Minnesota. Otter Tail Corporation's ownership backs a company that reclaims plastic resin at scale rather than relying solely on virgin material.

Frequently Asked Questions

How is an irrigation tray different from a carry tray?

A carry tray is built mainly to hold pots for handling and transport, while this irrigation tray is designed to hold water at the base of the pots for bottom-up watering. Both use a similar cell format, but the irrigation tray's function is centered on water delivery rather than just transport.

Does this tray work with both round and square 450 Series pots?

Yes, this tray is built to accept both round and square pots from T.O. Plastics' 450 Series, so growers running mixed pot shapes on the same bench section do not need separate tray types.

Why is bottom-up watering better for even distribution?

Bottom-up watering lets each pot draw water at a similar rate through its drainage holes, rather than depending on overhead spray patterns that can apply more water to some pots than others. It also keeps water off foliage, which can help reduce foliar disease pressure.

How many pots does one tray hold?

This tray holds 15 pots in a 3x5 cell layout, sized to match a section of 450 Series pots. Cases ship 50 trays, enough to outfit a full bench run in one order.