Float Valve
Float Valve at HorticultureSource.com -
American Hydroponics Float Valve (AH27012) American Hydroponics float valve allows you to automatically add fresh water to your reservoir. A plumbing kit, sold separately, makes this setup complete. Manufacturer's Product Information MSRP each $ 15.95 Dimensions 1.25 x 1.25 x 3 Case Quantity 1