FORMUFIT F114STE-BK-4 Slip Tee PVC Fitting, Furniture Grade, 1-1/4" Size, Black (Pack of 4) Fits 1-1/4" Size PVC Pipe, which has an outside diameter of 1-5/8" (1.660") Superior, glossy black surface finish with tapered sockets for a Professional appearance Injection molded as a single peice from durable and UV-resistant Furniture Grade PVC. Will not crack, change color or degrade over time like other sub-par PVC fittings.