Fernco Inc. P1060-33 FERNCO, 3 Inch, Black Product Description FERNCO P1060-33 Socket Coupling, 3 From the Manufacturer Fernco Flexible Couplings have found wide acceptance among sewer and plumbing contractors and municipalities because of their quality and ease of installation. Fernco couplings are used for all types of in-house and sewer connections: drain, waste, vent piping, house-to-main, repairs, cut- ins, conductor, roof drains and increasers-reducers.The 3? x 3? Coupling from Fernco have a 4? measurement with fit range of 2.95 x 3.62 inches Features Socket coupling repair fitting Flexible Socket to socket connection Rubber The 3? x 3? Coupling from Fernco have a 4? measurement with fit range of 2.95 x 3.62 inches USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.