72-Cell Round Plug Flat Insert, 2 in Cells, for 10 x 20 in

Hydrofarm 72-Cell Round Plug Flat Insert — for 10 x 20 in Trays

The right cell insert makes a difference in propagation efficiency. The Hydrofarm 72-cell round plug flat insert is designed for growers who use round coco plugs, soil plugs, or soilless growing media — the round cell shape provides a snug fit for most commercially available round propagation plugs, keeping them upright and in position throughout the propagation process.

With 2 in cell depth and 72 cells per tray, this insert maximizes propagation density in a standard 10 x 20 in footprint. It fits the Hydrofarm Cut Kit Tray and all standard 10 x 20 in seed flats, making it a compatible addition to any existing propagation setup. Use with a humidity dome for best germination results.

Key Features & Benefits

• 72 round cells — 72 individual round cells per insert — high density for efficient propagation in a 10 x 20 in footprint.
• 2 in cell depth — 2 in depth accommodates round coco plugs and most standard propagation plug sizes.
• Round cell shape — round cells provide a snug fit for round coco plugs, soil plugs, and soilless media plugs.
• Fits 10 x 20 in trays — compatible with the Hydrofarm Cut Kit Tray and all standard 10 x 20 in seed flats.
• Reusable — durable plastic construction for reuse across multiple propagation cycles.

Who Should Use This Insert

Growers who use round propagation plugs — coco, soil, or soilless — for seed starting or cutting propagation in standard 10 x 20 in trays, and who need a 72-cell density configuration.

Round vs. Square Cell Inserts — Which Is Right for Your Plugs?

Round cell inserts (CK64002) are designed for round plugs — coco coir rounds, root riot cubes, and similar circular propagation media. Square cell inserts (CK64002SQ) are designed for square plugs and rock wool cubes. Using a round insert with square plugs (or vice versa) results in poor fit, unstable plugs, and uneven moisture distribution. Match the cell shape to your propagation medium for best results.

Frequently Asked Questions

What plug size fits this insert?

The CK64002 is designed for round coco plugs and similar round propagation media that fit a 2 in cell depth. Most commercially available round coco plugs (such as CocoTek or Jiffy rounds in the standard size) are compatible.

What trays does this insert fit?

The CK64002 fits the Hydrofarm Cut Kit Tray (CKTRAY) and all standard 10 x 20 in seed flats — the industry-standard tray format used by most propagation tray manufacturers.

Can I use this insert with soil?

Yes. The round cells can be filled with potting mix or soilless growing media for seed starting, in addition to accepting round propagation plugs.

Can this insert be used with a heat mat?

Yes. Place the tray and insert over a standard heat mat sized for 10 x 20 in trays to provide bottom heat for faster germination.

Is this insert reusable?

Yes. Rinse between uses and sanitize as needed. The durable plastic construction allows multiple propagation cycles from a single insert.