The Norwesco 4 Inch Bulkhead Fitting is a polyethylene through-wall fitting that gives you a sealed, serviceable connection point where a pipe or hose line passes through a tank wall. It carries a 4-inch nominal size and ships as a compact hardware item weighing about 4 lb. Because it is molded in polyethylene rather than metal, it resists corrosion and weather exposure right at the penetration, with no painted or galvanized surface to maintain at the connection.
What it fits and how it installs
This is a 4-inch bulkhead for a drilled tank penetration: the fitting body passes through the wall opening and draws tight against the tank surface to seal the port. Match the 4-inch size to the outlet or port you are plumbing, and confirm the wall opening is sized and deburred before you set the fitting. It is an outlet fitting selected by port size, not a lid or manway matched to a tank model, so the 4-inch spec is what you plumb to.
This fitting ships from the nearest Norwesco plant in our network, quoted live to your ZIP through the Freight Cost Estimator; small hardware like this may move parcel or ride along with your tank order. For sizing help across 1-inch to 6-inch outlets, call 866-418-1777.
Freight and documents
LTL freight is quoted to your ZIP with the freight cost estimator or by phone at 866-418-1777. The listed price is before freight.
Technical drawing (PDF) for Norwesco 62171.
See this tank
Product video. Watch the Norwesco 4 Inch Bulkhead Fitting video (57 seconds) with dimensions, fittings and shipping notes.
Ready to order?
Add it to your cart at the top of this page, get LTL freight to your ZIP, request a written quote, or call 866-418-1777. The listed price is before freight.