The 4 Inch PP Threaded Bulkhead Fitting is a polypropylene through-wall connection from Snyder Industries, sealed with an EPDM gasket. It carries a 4-inch threaded port and measures about 9.5 in across the flange with a 5 in profile, giving you one clean, sealed 4-inch penetration where a pipe run meets the wall.
What it is and how it installs
This is a threaded bulkhead: the body seats through a drilled wall opening and draws tight against the EPDM gasket to seal the penetration, while the threaded side accepts your matching 4-inch pipe or nipple. Molded in black polypropylene, it is a standalone hardware fitting rather than a fixed part of any one model. Confirm your wall opening matches the 4-inch bulkhead body before drilling, keep the sealing faces clean, and hand-tighten evenly against the gasket to set the seal.
Material notes
Polypropylene resists corrosion and holds its dimensions, and the EPDM gasket carries the compression seal at the wall.
This fitting ships from the nearest Snyder plant among Lincoln, NE, Marked Tree, AR, Merced, CA, Philippi, WV, or Texas, quoted live to your ZIP with the Freight Cost Estimator - small hardware may ship parcel or alongside your tank. Questions on fit? Call 866-418-1777.
