Screw In Stainless Steel Coop Cup stainless steel remains the most popular choice for pet dishes for a number of good reasons. Its nearly impervious stainless steel surface will not absorb smells, does not stain, and is easy to clean and disinfect. The A&E Cage Co. 4" Stainless Steel Replacement Bowl will substitute the J8-2222T and J8-2828 play stand bowls.