Polypropylene Fittings

Polypropylene fittings are fully corrosion proof, which makes them the go-to choice for chemical and soft wash plumbing. Poly will not rust or react with sodium hypochlorite, so it holds up where metal fittings break down.

How to Choose

Match the thread size and the fitting shape you need, such as an elbow, tee, adapter, or barb. Poly is built for low and medium pressure chemical lines, not high-pressure discharge plumbing. For high-pressure water, use brass, steel, or stainless steel instead.

Common Applications

• Soft wash and downstream chemical lines
• Sodium hypochlorite and detergent plumbing
• Chemical tank and pickup fittings
• Lightweight, low-cost connections

Frequently Asked Questions

Why use poly instead of metal for chemicals?
Polypropylene does not corrode or react with bleach and most cleaning chemicals. Metal fittings rust and fail on these lines, so poly lasts longer.

Can poly fittings handle high pressure?
No. Poly is made for low and medium pressure chemical lines. For high-pressure water, choose a metal fitting.

Is polypropylene the same as PVC?
They are different plastics. Poly is flexible and tough with strong chemical resistance, which suits soft wash work well.

Why Buy from Sun Brite Supply

Sun Brite Supply has supplied Maryland's soft wash and pressure washing pros for over 30 years from Gaithersburg, MD. Call (301) 519-9274 and we will match the right poly fitting.