Mine looks like this. You can virtually make any size you want. With Those 3 pieces. Home depot for the silicone part and cap. Target for the air inlet. This one was just a little expensive since i couldnt find the little fitting to get actual air through the system. Another downside is no pressure gauge. Mine Held up to 32psi then came flying of with a big kaaddaa BOOM!
Total Cost: $5.43
Threaded Mode