Norwesco Polypropylene Tank Bulkhead Fittings is an easy to install and highly versatile storage tank fitting. It is great for use in a wide variety of applications, including rainwater harvesting, well water storage, cannabis growing operations, agriculture, reverse osmosis systems & more.


  • Female NPT Connection – industry-standard outlet connections make attaching additional plumbing and valve a breeze
  • EPDM Gasket – a durable gasket that is rugged enough for many chemicals but also safe for potable water
  • Polypropylene Construction­ – the body of the fitting is made of polypropylene, which won’t rust or corrode like brass, and can stand up to many harsh chemicals
  • Double-Threaded – the NPT female threads are available on the inside of the tank also, making it easy to attach a siphon tube, submersible pump, or other plumbing to the interior of the tank
  • Fits Many Tanks – can be used in almost any plastic tank or barrel


1 1/4" Fitting - 2 1/4" Hole