For sale is a used System 74-YA CO2 Regulator with White Cap for CO2 canister:
CO2 System 74-YA/Yer.2 (white) [101-006] - $129.99 : Aqua Forest Aquarium, ADA USA, Aqua Design Amano
and EL Valve Electronic Solenoid
EL-Valve (electronic solenoid) [101-411] - $129.99 : Aqua Forest Aquarium, ADA USA, Aqua Design Amano
$100 + Shipping for both.
CO2 System 74-YA/Yer.2 (white) [101-006] - $129.99 : Aqua Forest Aquarium, ADA USA, Aqua Design Amano
and EL Valve Electronic Solenoid
EL-Valve (electronic solenoid) [101-411] - $129.99 : Aqua Forest Aquarium, ADA USA, Aqua Design Amano
$100 + Shipping for both.