I love the quality of most BVM products, but the air-fill valve is not one of them. I've had too many of them develop leaks.

I now use something that is far cheaper yet far more resilient in my experience, and also has more flexibility in plumbing options.

$3.35 for the male AND female parts: http://www.clippard.com/store/displa....asp?sku=MQC-3 (valve + filler adapter)

$1.90 for just the female part : http://www.clippard.com/store/displa...asp?sku=MQC-V3 (valve only)

Then you choose the fitting you want on the bottom:
- different barb sizes such as http://www.clippard.com/store/displa...ku=11752-2-PKG for regular airline, http://www.clippard.com/store/displa...ku=11752-4-PKG for larger (4mm / 5/32")
- different barn TYPES, including a Tee with 3 barbs on it http://www.clippard.com/store/displa...ku=XT2-202-PKG , an L with 2 http://www.clippard.com/store/displa...?sku=TT2-2-PKG , plus swivels and all sorts of other neat connectors.

Above prices are from my last purchase from Clippard - may have gone up a bit in the meantime.

Gordon