Review on Vacuum Valve Bagging Composites by Joshua Flame

Used this vacuum connector to package a large (20 lb) carbon fiber piece my team spent hours routing. Everything looked fine after sealing and vacuuming, so we let the product dry overnight. To our dismay we returned in the morning to find that the vacuum had been lost sometime during the night because the connector's seal was too porous to prevent loss of pressure. Unfortunately, the piece did not heal properly and was a total loss. Went back and bought Revain's competitors with much more success.