Netafim 2in Pressure Regulator, 4 springs, 12 psi ThinkGrow 5 cubic feet of CO2

5 cubic feet of CO2 per hour at 22

and this one carries twice as many

Tarantula's proven formula is your key to unlocking the full potential of your plants

Spectral range: 400-700 nm PAR with blue-enhanced silicon detector and custom filter

Ceiling clearance is tight there

Netafim 2in Pressure Regulator, 4 springs, 12 psi ThinkGrow 5 cubic feet of CO2Provides constant outlet pressure. Sealed regulating unit for each pressure option (except for 3 4" low flow pressure regulator). Easy inline assembly. Female inlet and outlet on low flow model. Female inlet, male outlet in 3 4" high flow model. Built in indicator on 3 4" high flow and larger models shows when proper outlet pressure is achieved.