Ball Lock Post 1/4inch BSPP Bulkhead Brewing Salts & Nutrients but they now include a

but they now include a check valve built into the fitting

Seal is made from food grade silicone and is suitable for high grade ethanol and elivated teperatures up to 200C

Perfect for DIY enthusiasts

Temperature Range: 5-22'C(with remote control) Voltage: AC110V/60Hz or AC220V/50Hz Setting humidity: 50-80%  Refrigerant: R134a Unit Size: 648*730*1695mm Packing size : 710*830*1800mm Weight(KGS): 113/124

Code: 129396

Ball Lock Post 1/4inch BSPP Bulkhead Brewing Salts & Nutrients but they now include aThe 1 4 inch BSP thread on these ball lock posts allows you to connect them to a variety of other fittings. A 20mm long thread, an o ring, a poppet, a locking nut, and a small dip tube are all included in the posts. If you wanted to, you could make a keg out of any pressure vessel with this method. MKIII and MKIV regulators, gas manifolds, Bottle Filler Beer Guns, and a variety of other devices can be fitted with the assembly.