Adjustable and Fixed fermentation Pressure Valve,BlowTie Diaphragm Ball Lock Spunding Valve Complete Kit for Home Brewing beer corny beer keg and 1.5"Tri Clamp

I have used this on pressure fermenting lagers and NEIPAs with kveik. Easy to assemble and set up. It is a must have for a homebrewer.

Works as advertised. Can now use a carboy as a secondary fermenter.

Gas leaked from virtually all of the connection parts, and because of the design it cannot be adjusted/fixed. Wasted $35

Would be a 5 if it was made with less plastic, but given the price it is reasonable. It is a bit tricky to be sure the parts are assembled correctly, in particular inserting the clear plastic tubes into the other parts. Not inserted far enough? Could leak. Inserted too far? Could block some openings, especially around the gauge. Also, the fittings on the red valve part need extra attention to see that they are pushed in tightly, or some leaking could occur.In short, a reasonably priced item that seems to work fine as long as you pay lots of attention to assembly.

Bough it as a replacement or another all metal parts unit I purchased on amazon via another vendor. the other unit did not hold pressure, this one has been solid since day one. will be buying another one soon. Using these to pressure ferment and for keg transfers.