Clack WS1.25 AIO Meter Valve, w/ Bypass, Gravel, 1465 Tank, No Media

AIO w/Control Flow Technology system features the Nelsen proprietary air injection control valve with a patented process for a slow release of the air pocket and a delay of regeneration if water usage is detected. The systems include 1-1/4" NWS Meter Control w/Control Flow Technology, bypass valve, gravel underbed & 14" x 65" mineral tank. Media is not included;