This is for three WHITE 20″ x 24″ trays. These do not come in the red, grey, white like the other Paterson trays
This Paterson Developing Tray is constructed of a hard durable, chemical resistant plastic, and is available for all popular print sizes in 3 colors to help differentiate between chemicals under safelight conditions
The trays base design gives maximum economy of solution and easy print removal, with a convenient pouring lip for drip-free emptying