John Guest Fittings & Saltwater

[FirstContact]

Can we push saltwater through John Guest fittings without rust or negative effects?

 

[scottedontknow]

I’ve never had an issue

 

[xxkenny90xx]

Aren't John guest fittings all plastic?

 

[FirstContact]

Okay, reads good. I honestly don't know if they're all plastic. I now they are made for fresh water, but you are probably right. Thanks.

 

[rushbattle]

The surfaces that face the fluid inside are all plastic and whatever the o-ring is made from, but there is a metal lock to keep the tubing inserted which can rust. My opinion is that they shouldn't be used in water, but pushing saltwater through them is no problem. Other's have used them in water before with no problems though.

 

[homer1475]

I have them all over my system, no issues. The ones I have came with a plastic clip to hold the line, not metal.

 

[FirstContact]

Thanks everyone.