Excellante third size 4-inch deep polycarbonate food pan. The polycarbonate food pan is shattered resist and resists acid and oil corrosion. They are easy to clean and dishwasher safe. These pans can withstand temperatures of -40 degrees F to 212 degrees F. Lids and drain shelves are sold separately. NSF(National Sanitation Foundation) listed. 2 steps in choosing the right size of steam pan that you are looking for: (1.) In foodservice industry, we use full, half, third,-quarter, sixth and ninth size as referring to standard steam pan size term. You can mix and match sizes to give you one full size steam pan space. (Example) you can buy 2 half size, or 3 third size steam pans for your full size chafer or food warmer. ( 2.) Next selection is the depth of the steam pan. Standard sizes are 2-1/2, 4 and 6-inch deep.