wjtstudios
Hooked
I just installed these myself. Theroetically it makes sense. Instead of a one-way valve at the end of the hose, It's an open air filter. So when your warm differential contacts cooler water, the warm air contracts, instead of closing the one who valve, nothing happens. There is an optimum pressure differential. This prevents water from being sucked in through the seals, unless you have a seal leak.
http://store.arbusa.com/ARB-Differential-Breather-Kit-170112-P22783.aspx
Thank you for catching that for me! They are a great product and you explained it better than I could have.
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