MIFAB® MI-EC Series of flexible rubber end caps manufactured from neoprene compound that meets the requirements of ASTM C-564 with inside knurling for superior pipe grip and Type 300 Series of stainless steel clamp tightened with 5/16” Type 300 stainless steel hex head screw. MI-EC Series of end caps are tested and certified to I.A.P.M.O. Standard PS 90-06 and CSA Standard B602-2016 and listed with I.A.P.M.O. All models are listed to the National Plumbing Code of Canada and relevant Canadian Standard(s) and bear the cUPC mark of conformity. Non constant temperature rating is 140 F.