Crosby Clamp-Co 1,000 LB, 6.90 in CAST IRON PIPE Clamp Grip Range AS IS. WEAR, IMPERFECTIONS, SOME SURFACE OXIDATION. ONLY WHAT IS SHOWN INCLUDED. PLEASE ZOOM ON PICS FOR DETAILS. DESIGNED FOR 6.90 IN PIPE, ONLY SIZE ON CLAMP.
SAYS FOR CAST IRON PIPE UNSURE WHAT OTHER MATERIALS IT WOULD WORK ON.