Fat Sac Automatic Venting Cap - W772 velocity The key difference is the

The key difference is the chrome-plated Brass body of the B2 first stage

t-shirt fit

For intermediate-advanced riders looking to take foiling to the next level - the Nebula/Horizon combo

5% of the sun’s harmful rays

Use it to attach the towel securely to your boat tower or bimini for fast drying

Fat Sac Automatic Venting Cap - W772 velocity The key difference is theAutomatic Venting Cap(W772): This is one of the few fittings that we do not make in house but still approve for use with FatSac brand sacs. The Automatic Venting Cap is primarily for use in automated ballast systems that are plumbed into the boat aftermarket. You can screw this fitting into the valve at the top of your sac and it will allow any air trapped inside to escape while remaining watertight. Made from 6 6 Nylon with a proprietary Heyco