This float valve features a 1/4” quick connect fitting and adjustable water level. It can be mounted vertically or horizontally. Stainless Steel & PVC Components The float valve allows you to fill a reservoir or tank, unattended, to your desired water level. For use with all Stealth-RO, Micro-75RO, Triton-RO & Small Boy™ models or most RO and filter systems with 1/4” tubing. No more floods!