Large Diameter Couplings For special or non-standard size couplings. Large Diameter Couplings are ideal for repair, alterations or rehabilitation of large diameter sewer pipe. These couplings are made from flexible PVC and offer easy installation and leak free connections. They are engineered for use with all common sewer piping materials: clay, concrete, cast and ductile iron, asbestos/cement, plastic or fiberglass. Features: Accommodates an O.D. difference of up to one inch* 12.7 inches wide 3/8 inch thick with multiple sealing ribs 2 - Series 300 (18-8) all stainless steel, extra strength (.040 thick) T-bolt clamps with multiple take up points Up to 150 in./lbs. of torque for greater sealing pressure. Order by specifying the outside diameter (O.D.) of both pipes in inches. *Where O.D. differences range from 1-1/4" - 4", a Fernco Bushing system is available. Note: Never install this type of coupling until you read and understand the installation instructions and verify the dimensions ordered.

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