17 Pipe gaskets for use in clean rooms, sanitary and sterile environments for sealing surfaces without using a filler or sealant impeding bacteria, mold and fungus from forming on metallic pipe; Pipe insulation for sealing surfaces on metallic pipe; Couplings, not of metal, for rigid pipes; Elbows, not of metal, for pipes; Fittings, not of metal, for pipes; Insulated pipe supports; Insulated pipe supports, not of metal; Junctions, not of metal, for pipes; Non-metal pipe couplings and joints; Non-metal elbows for pipes; Non-metal fittings for pipes; Non-metal seals for sealing surfaces without using a filler or sealant for pipe connections