Positive seal against infiltration and exfiltration, Stainless steel clamps are corrosion resistant and rustproof, Leakproof, rootproof and resistant to chemicals, ultraviolet rays, fungus growth, and normal sewer gases, 1 1/4" or 1 1/2" tubular to 1 1/4" or 1 1/2" drain pipe, Material: plastic, CSA Certified: ASTM D 5926