Fernco stock couplings are designed for connecting same / different sized pipes / tubing for venting, waste disposal & drainage applications. These couplings feature PVC construction for resisting fungus growth and damage against chemicals, sewer gases & ultraviolet rays. They come with 300 Series, stainless steel clamps for minimising installation time while providing secure positive sealing against exfiltration & infiltration. Choose from a broad range of these stock couplings, available for 3/4, 1, 1-1/4, 1-1/2, 2 x 1-1/2, 2, 3 x 2, 3, 4 x 3 & 4 inch pipe sizes.