Fully assembled kit with Ball lock coupling and overpressure valve with manometer. If you want to ferment under pressure on e.g. FermZilla, this is the solution for you! The adjustment screw on the valve makes it easy to increase or decrease the set pressure.The parts can be easily disassembled for cleaning. Including: 1x BlowTie 2 Spunding Valve with 0-15psi pressure gauge (can be replaced)1x Duotight 8mm (5/16") Ball Lock for CO21x Intermediate piece 8mm (5/16")