Plumbeeze Stainless Steel Insert Fittings are available in a variety of sizes and fitting types. The elbows have been designed with a smooth sweep channel to minimize friction loss. This ensures the highest possible flow rates and pumping efficiency. Plumbeeze recommends using both Gray Stainless Steel PTFE Tape & Plumbeeze Pipe Joint Compound together for joining stainless steel threaded fittings.