Bushings - Plastic Sales # Size PCX PB-215 2” x 1-1/2” PCX PB-32 3” x 2” PCX PB-43 4” x 3” PIPECONX Clay and Plastic Bushings provide a transition on the interior of the coupling while maintaining a straight exterior. This is necessary when applying a shear ring. Tabs on the bushing hold the bushing in place to ensure a tight seal. Specialty Products Bushings - Clay Bushings - Plastic Compression Joint Sealers (Donuts) Manhole Adapters No-Hub Couplings O Rings Shear Rings Where to Buy