Description BLACK THREADED CAP ONLY Chain included - other items shown are available separately 2.5 inch threaded cap See detail images for how to properly measure bevel seat sanitary stainless steel tubing and fittings. note measurement shown in picture is not this size. 2.5 = 2.3 inside diameter of tubing for 2.5 inch sanitary stainless steel fittings 2.5 = 2.5 Outside diameter of tubing, not ferrules on the end. keeps bugs and dirt out of tank washer while not in use 2810-25 Male Threaded Cap with chain 2910-25 Female Threaded Cap with chain 1000-395 Hexnut for 2.5 inch Milk Tank Valve - Stainless Steel Related Items; 1000-395 - Hex Nut -SS - for 2.5 inch male bevel seat ACME 1000-575 - Dust Cap - SS - for 2.5 inch male bevel seat ACME 1000-025 - buna rubber bevel seat gasket for 2.5 inch 1000-355 - 2.5 inch male bevel seat roll on ferrule Related Items for 2.5 inch stainless Steel tubing; 1000-005 - 2.5 BUNA Rubber Gasket1000-028 - 2.5 inch Silicone Gasket 1000-008 - 2.5 Teflon Gasket 17132 - 2.5 H.D. SS Pipeline Clamp 1000-445 Econo 2.5 Triclamp with thumbscrew. 1000-335 - Clamp Short Weld-On Ferrule 2.5 inch1000-325 - Clamp Weld-On Ferrule 2.5 inch 1000-315 - Clamp Roll-On Fe