Paterson Plastic Developing Tray The Paterson Plastic Developing Tray is a single white tray that measures 24 x 28" and is designed to accommodate print sizes up to 20 x 24". Paterson's durable trays are made from thick polypropylene and are perfect for industrial and school settings. They feature a patented design to prevent your thermometer from sliding, and the base ribbing keeps prints from sticking to the tray. Additionally, the ribbing contributes to rigidity, while the extra large pouring lip minimizes chemical splash. The base design allows for maximum solution economy and easy print removal, while the pouring lip ensures drip-free emptying. Features: Ribbed base for easy print removal Chemical-resistant plastic construction Convenient pouring lip Stackable for efficient storage Size: For Print Size: 20" x 24" Tray Dimensions: 24" x 28" x 4" In The Box: Paterson Plastic Developing Tray for 20" x 24" Prints - White