CO2 Bubble Counter and Check Valve – I 564:
Item is easy to install. The hose mechanism is quite simple (similar to canister filters), it’s perfect to use with the MAX MIX CO2 REACTOR, because it allows to control the CO2 flow, once it´s impossible to control the CO2 flow using only the reactor. Two functions as CO2 bubble counter & check valve in one unit. Apply to both internal or external use.