Review on ❄️ VIAIR 90145 Winterization Kit for RVs by Trey Gilbert

Regulator Does Not Regulate. Whatever air pressure came in, it immediately returned from the other side, no matter how the adjustment knob was set. Possibly poor factory quality control. It's no good trying to winterize your RV. I previously wrote by mistake that the case is plastic, which was wrong. It's a metal body, but that doesn't take away from the fact that it's not adjustable.