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I'm trying to gauge how many people would be interested in a ball & spring type MBC for $25. It's uses the same Grainger valve that's used in most other MBC's. It would be a small kit, including 3/16" tubing and everything needed to hook it up. Please reply to this post if you would be interested. I wanted to get a count so I know how much stuff to order. I've been playing around with different fittings and combinations, and think I found a good way to make the same thing others are selling for $50.

Below is a pic of the valve. On one end there is a barbed port, and the other end i tapped out, and screwed in a plastic elbow. The elbow has a 0.021" hole drilled in it for venting after the valve closes. You can also see the set screw on the MBC that allows you to lock in your set position. Very easy to install and adjust. Took me about 30 mins (4 stops) to get it tuned in. Hopefully there will be some interest. Please reply with questions.

SG
 
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