045N21N: 45 Cell 12 x 20 Inch One Piece Air Pruning Tree & Shrub Propagation Tray

  • 45 cell one-piece propagation tray.
  • Perfect as a ‘rose pot’ replacement.
  • Open design allows for excellent drainage/aeration.
  • The tray is sturdy and an ideal design for automation.
  • Cross-shaped base hole allows for easy plant extraction.
  • Features Proptek’s air root pruning technology for exceptional quality natural roots.
  • Spacer ribs between trays allow easy de-stacking, either mechanically or manually.
  • Excellent drainage / aeration for wet/dry cycles.
  • Suitable for a wide variety of plants.
  • Injection molded for long life and easy handling.

Made In:

USA Flag

Suitable For

Blueberries, Raspberries, Strawberries, Shrub Liners, Woody Ornamentals

Almonds, Fruit Trees, Nuts, Landscape Trees, Cannabis, Hemp

Grapes, Landscape Trees

Details & Features

This one piece 45 cell tray is equivalent to the traditional 2.25” “rose pot” in spacing terms, but with extra features to ensure excellent plants and efficient operations.

The 45 tray is perfect for use in the woody ornamental and nursery stock propagation market, though is suitable for a very wide variety of plants. This is also a good size container for the propagation of hemp seedlings for transplanting to the field or greenhouse.

The open design allows excellent drainage and aeration, but the solid outer wall prevents cross-rooting between trays.

Root circling is eliminated due to Proptek’s specialist root training ribs and air root pruning windows. Due to the specially chosen cell angle, exceptional roots and tough injection molded design, plants pull exceptionally easily.

The cells also feature a cross-shaped base hole to allow for extraction from the base by pushing up in corners where roots are concentrated – prefect for cost-saving automation systems.

As with all Proptek trays and containers, the 45 is injection molded for long life, easy handling and trouble-free mechanization.

Key Features

Cell Count


Outer Dimensions

20" x 12"

Plant Density

25.85 pl/ft.2

Cell Volume

172 cc

Min Order Qty

320 trays

Made In


Seeding Information

Cell Count



5 cells x 9 cells

Plant Density

25.85 pl/ft2

278.24 pl/m2

Cell Volume

20.5 cu in

172 cc

Centre-to-centre spacing



Tray/Frame Dimensions

Length at top



Length at bottom









Cell Dimensions

Cell opening



Cell depth



Drainage hole Diameter



Tray weight



Shipping Statistics

Minimum Order Qty

320 Trays


Units per Pallet1

360 if order full truck

320 if ordering partial shipment

Max Pallets/Truck


Max Units/Truck


Max Units/Container2


Please Note…

1 Full truck loads can fit more trays per pallet as a dedicated full size 53ft lorry is used for delivery. For partial truck loads, we cannot guarantee the height of the lorry, so pallets must fit into all commercial freight vehicles. If arranging your own transport, please advise us at the earliest opportunity on the internal height of your vehicle.

2 Trays are stacked loose or partly loose to get the maximum number of trays per container. This will result in lower unit shipping cost but also more labor to unload

All statistics and measurements may vary so please check before purchasing, if critical, or ask for sample.

Jose Lima | Wonderful Citrus, CA, United States

I have used the 8 deep pot in frames since 2010 when I had the opportunity to closely participate in its design. The creation of this pot in frame marks a pivoting moment in the conception of modern professional citrus nurseries around the world. Technically speaking the pots are ideal for root development with adequate depth associated with internal ridges which direct the roots down and windows that cause air pruning enabling even more root mass to develop. The frame holding 8 pots make it an easy transition to automation and conveyance which are key features in any professional nursery in the new era of high labour cost. In my point of view, the question of which container to use in a professional citrus nursery has been answered by Proptek and its 8 cell deep pot in frame.

Roger Smith, General Manager | TreeSource Citrus Nursery, Ca., United States

The Tall Pot is a system, not just a container. We designed our 4 acres of facility around the pot and tray and saved thousands of dollars on benching because we only needed rails. The 8 cell tray naturally saves labor by reducing repetitive walking and is conducive to mechanized pot filling and conveyors.

On top of that, the injection molded pots and frames are durable and long lasting. We steam sterilize them and expect at least a 6 year life. The best feature is the root pruning and root architecture caused by the pot. There is absolutely no circling of roots and the mass of roots in the pot is amazing.

Our citrus trees take off and come into production sooner than any other pot used in citrus. Choosing this container was the best decision we ever made.

L E Cooke Company, Ca., United States

I think they [Proptek’s propogation containers] are one of the best root pruning pots out there.  For one thing they are in a 10×20″ format which allows us to be able to maximize our bench space, where other types of air pruning pots leave a lot of open bench space.

I also like the way the plant is easily pulled from the pot and then easily put it back into the pot when checking the roots.  I like the injection mold type of pot instead of cheaper thermoformed pots.  They last much longer and are definitely worth the price point.  I think these pots should be more widely used in the industry, therefore making better roots on plants for the whole industry.