Coupling 8 x 8 in. Rubber Combine the flexibility and strength of PIPECONX couplings with a stainless shear ring and you get a leak-proof, shear and chemical-resistant connection that is impervious to roots and unaffected by soil conditions. Plastic or Cast Iron to Plastic or Cast Iron. 8" x 8" pipe size. FeaturesCoupling 8 x 8 in. RubberSpecificationsDimension: 0.1 x 0.1 x 0.1 in.Weight: 3.5 lbs- SKU: WLLCH8312.