Amazon offers the Kerick Valve Mini Tank-Mount PVC Float Valve for $9.02 with free shipping for Prime members. That's the lowest price we could find by $5. This valve automatically regulates the level of liquid within a tank, including fountains, livestock water tanks, and cooling towers. Features include:
  • 1.3 gpm flow rate at 40 psi (or 1.5 gpm at 60 psi)
  • 1/4" tube fitting inlet and free-flow outlet
  • 18/8 stainless steel hardware
  • 1.5" x 4" float ball attached to the adjustable valve shutoff arm