Review on 🐠 FZONE Pro Series Aquarium CO2 Regulator with Dual Stage, Adjustable Output Pressure, DC Solenoid, Integrated High Precision Needle Valve, and Bubble Counter by Molly Hoffman

Photos show the first controller with scratches and scuffs on several parts. What else was wrong: 1. The solenoid would not stop passing CO2 on deactivation until the operating pressure dropped to zero PSI, 2. the operating pressure would fluctuate 5 PSI up and down. Support was quick to respond via email but only between 9:30pm and 5:30am ET; So it took me a few days to make up my mind. I cleaned the nipple and solenoid as instructed but noticed when the power was shut off the nipple looked damaged and could be the cause of the CO2 leak. Reassembled and plugged back in now the working PSI was also hovering around 5 PSI but the CO2 leak seemed to stop when the power was shut off. Filmed and sent them photos and videos on request. They sent a new one on Friday and received it on Sunday. This was perfect and worked great. This regulator is the same as CO2ART but $120 more. Not sure why there are reviews saying FZone not responding. They responded to me and quickly replaced the item. I will buy it again and if anything changes I will update this review. You have an fzaqua website.