I have found only one connector that works perfectly for vacuum pressure. This solid brass vacuum bag connector locks on to the vacuum bag valve stem with a strong spring-loaded clip and features a soft cast O-ring which makes a leak-proof connection. This nicely machined connector has a 1/4" NPT-female thread. To use the lock-on connector with your vacuum press system, you will need a brass barbed fitting to match the inside diameter of your vacuum tube. This option can be selected above. The barbed fitting attaches to the 1/4" NPT-female thread on the lock-on connector.
The "connection side" of the lock-on connector is compatible with the following items:
All lock-on connectors now ship with a special large bore to allow maximum vacuum flow.
Review by Randy C
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One of my biggest issues with my connection of my hose to my bag was having to connect the 1/2" tubing to the old barb fitting on the bag and using a hose clamp to secure. Yes...the connection was completely sealed, but I had to hook the hose on before I put my piece in the bag. It was a pain. All my issues were with the hook-up. This quick connector alleviated all of this. I couldn't order it fast enough and even bought a new valve stem kit to replace my old one. I bought a new poly bag and it came with the new valve stem so I can do all my hook-up with this quick connect. It is by far the best thing out there. Highly recommended.
Review by Michael A.
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Nice product. I've bought 4 of these to make a manifold system for gluing skateboards in 4 bags at once. This connection system is very rugged and I have never had any leaks with it.
Review by Gerard W.
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This connector works very well and I have not yet had any problems making an easy airtight connection. I have another bag from a different company and the tube just gets jammed into a nipple of the bag. Sure enough, it seemed like every time I used it, I ended up snagging the tube on something and then pulled it off the bag. This creates a mad dash back to the bag to re-attach the tube. With this connector, I've had not problems at all. I can pull all day long on the vacuum tube and it will not come of the bag. My shipping cost to Michigan was very affordable. Joe runs a great site and his customer service is impeccable.
Review by Craig Watkins
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I have 6 of these connectors on my vacuum press manifold. I generally run 6 small bags at a time with the manifold and I have a lock on connector at the end of each of the manifold ends. This is a highly quality piece of machined brass that makes a good seal on the stems. There are other options that some companies offer which dont work quite as well. I've had a few of them come loose and nearly ruined my project. I doubt these connectors could pop off accidentally. Even if you tug on it when moderate force, it stayed connected and sealed.
I should mention that all of my current vacuum press equipment is coming from this website. I just find that the customer support here is second to none and the products are always well made and reliable.
Review by Nathan G.
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No problems. Works as described and shipping was reasonable.
Review by Todd Greene
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This is a suprisingly secure bag connector. It definitely feels like a heavy duty product. I had some concerns about how well it would seal against the valve stem but these worries were quickly put to rest when I tried it out on my vacuum bag. The shipping charge was reasonable (though I did have other things with my order) and it only took a couple of days to get here. I'm very satisfied.
Review by Robert J.
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Excellent item. Very smart "borrowing of an idea" from another industry.
Great job Joe!
Review by Joel T.
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Great product. Worked just as I had hoped. I will be ordering more parts very soon.
Review by Mike Joonesburg
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Very nice product. Works very well!
Review by Tom Burwick
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Right on the money! This connector is just what the doctor ordered!!! A non-proprietary, heavy duty, and tough as nails bag connector - Finally! Thank you Joe for the outstanding find!
Review by John Dominoc
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Very well made connector... very beefy and rugged and makes connecting to the bag a simple one handed process.