Gasketed SDR 35 fittings feature a one-piece integral bell and an extended pre-alignment entrance that aids in proper alignment of pipe and fittings. In addition to scientifically formulated resins, square pipe stops resist pipe push-through while extra heavy support is provided under the pipe stop at branch intersections for added strength. Where available, reducing branches on injection molded 8 in, 10 in and 12 in tees, wyes and tee-wyes shall be minimum DR18 wall thickness in the reducing branch body and reducing branch hub area below the gasket race.