Empire Industries 12" Black Riser Clamp

12" Black Riser Clamp Materials: Carbon Steel Finish: Plain Service: Designed for supporting and stabilizing vertical pipe runs. Approvals: U.L. - U.L.C. listed (sizes 2" - 8"). Complies with Federal Specification WW-H-171-E (Type# 8), A-A-1192 A (Type# 8) and Manufacturers' Standardization Society MSS SP-58 and SP-69 (Type# 8).