This 8-piece valve stem kit is the best way to connect a vinyl or polyurethane vacuum bag to the lock-on vacuum connector and vacuum hose. Each stem has double-width air channels cut from the center intake to direct airflow quickly and evenly from the vacuum bag. The kit includes 1 zinc-plated brass valve stem, 2 zinc-plated heavy duty washers, 1 zinc-plated washer and nut. A Viton O-ring is also included. Lastly, the kit includes 2 "kiss-cut" medium density PVC grommets.

The grommets are attached to the washers with an acrylic adhesive which prevent them from creeping if the vacuum bag stretches. With only a bit more than hand pressure, this combination also prevents elongation of the opening where the stem is placed. No cementing is needed and because of this, a valve stem can be moved from one bag to another if needed.

While other companies are selling something similar for $18 to $31, our unit is less than half of their price and works twice as well. Our unit allows the lock-on vacuum connector to be attached with simple finger pressure.

Update: We now offer a new "flush-mount" valve stem assembly. Click here for details.