This really handy device is great for filling kegs, keg to keg transfers or fermenter to keg transfer - great for use with Fermzilla or other pressure fermenters.

Simply attach this device to the output gas post of your keg then when the keg is full it will prevent further liquid exiting the gas post. This means you can literally set and forget and fill kegs automatically without the risk of kegs overflowing all over the floor. For even better results we recommend this product to be used with the BlowTie Kit.

This Blowtie Spunding valve will also enable you to apply head pressure to the keg meaning you can control the flow speed but also reduce the foam generated in the filling process, particularly for carbonated beverages like beer.

This flow stopper includes:

• 2 x Duotight 8mm x 5/8 push in fittings
• 1 x ball float
• 1 x stainless spring
• 2 x straight 8mm joiners
• 1 x acrylic sight glass (with 5/8 male thread on either side)
• 1 x Duotight Elbow 8mm
• 1 x Duotight 8mm to FFL

You will also need an MFL Keg Connector (not included) to connect the Flow Stopper to your ball lock keg.