If you can find a place that carries pneumatic air fittings they should have a broad selectioin of low pressure check valves that would work. You would probably have to go with brass instead of plastic. If you happen to know a Honeywell, Johnson Controls or RobertShaw control fitter, he probably has a few in his junk bag. e - Toes On Mon, 1 Jul 2002 18:04:41 -0400 "Mark Blitman" <markblitman@xxxxxxxxxxxxx> writes: > thanks elijah..i have called all the auto parts places and they say > they do not have anything like it>