Suwannee Valley Lab Screens- $275.00 Our version of the desktop lab screen was produced in conjunction with lots of feedback from CRM and university lab personnel. It includes three screen trays (1/16, 1/8, 1/4 inch mesh) each with a 10 x 10 surface area. A fourth catchment tray is situated at the bottom and provides the convenience of easy cleanup. All four trays fit securely into a wood rack which secures the trays during use, as well as, during storage. While there are many desktop lab screen options on the market, there are none with the handcrafted elegance of the Suwannee Valley Lab Screens.