Review on FZONE Aquarium Regulator Solenoid Standard by Emily Wilson

There is nothing to complain about with this controller. Maintains a constant pressure, the needle valve keeps the adjustment perfectly. The fit and finish is great and the Solenoid has never let me down. The solenoid makes a clicking noise loud enough to startle my girlfriend. Turning the adjuster while connected to the tank will disengage the clutch. out of the regulator body, allowing the inner o-ring to fall out of place. I spent quite a bit of CO2 looking for the leak before I found it. You must use the included hex wrench to remove the coupler from the regulator and reinstall or replace the o-ring prior to reassembly. Unfortunately, this is not one of the supplied spare parts. The tank port o-ring will last long enough before it hardens and starts leaking, which really only happens when you buy a new tank. Mine lasted about a year.