Lab Work Pan Liners (144/box)Lab Work Pan Liners (144 box) Lab Work Pans are a great way to organize your laboratory. As cases arrive, sanitize the impressions or appliances and place them in lab pans to protect them from contamination. The pans are offered in a variety of colors, so they can be easily organized. Use a different color tray for each day of the week or try using a different color tray for ingoing and outgoing work. Features: Size: 7 x 5 x 2 1 2 (177. 8 x 127 x 63.