Our Performance PVC Furniture Grade 3-Way fittings are designed to connect three PVC pipes and form a corner in any PVC structure. They have tapered edges and come in glossy white without any markings or stamps from the manufacturer. These fittings will connect to standard schedule 40 1-1/4" PVC pipe, which has an outside diameter of 1-5/8". Furniture Grade PVC fittings are not intended to be used for plumbing purposes. Furniture grade PVC is typically used for do-it-yourself projects such as carts, cages, shelving, canine cots (dog beds), greenhouses, patio furniture, and dog agility equipment.