When mechanical trades are installing vertical runs of piping between floors, stabilization is needed, along with transfer of the weight of the pipe – especially when at full flow – to the floor or structure substrate. Typically located at floor penetrations, a riser clamp is placed around the pipe and against the floor. And depending on any localized building codes, additional clamps may be placed along the pipe between floors (in the "room") at other intervals to maintain consistent stabilization. And the quality of the clamp can of course affect the quality of your install. When looking for quality hardware for vertical pipe installations look to Allfasteners, America's trusted place For All Things Fastening. We stock these clamps in both high quality plain and electro-galvanized materials, and a variety of sizes from 1/2" right up to 12". Inquiries? Get in touch with us now, from anywhere in the 50 states.