Spruce 6" X 4" PVC FLEXIBLE COUPLING (WHITE)Spruce 6" x 4" flex coupling white couplings offer a high quality, cost effective solution for radon fan installations. 6"x 4" White Spruce Flexible Couplings Features: Rigorous testing plan for qualifying performance UV resistant, white Conforms to ASTM C 1173 and CSA B602 Connects fan to PVC pipe quickly and easily Corrosion resistant, rustproof stainless steel clamps Operating temperature range is 30F to 140F CA Prop 65 labels included
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