Solenoid Valve
How it works:

The solenoid is an electronic valve capable of handling the higher pressure of reverse osmosis (RO) or city water system. The valve opens when powered, and remains closed when not energized. A topoff controller is normally required to use a solenoid, however some people have setup a timer to control the solenoid to open for a few minutes per day.

A solenoid is commonly placed on the 1/4" water line between your RO water filter and your tank. They can also be used to fill a topoff reservoir or for water changes.

Info: Normally closed (open when powered).  120VAC .05 Amps

Polypropylene Solenoid Valve.  Internal components are saltwater safe (plastic and stainless steel).

Uses 1/8" NPT fittings.

Not rated for continuous duty. Plan your system to allow the valve to cool down every couple of hours.

Do not over tighten the nut holding the coil on to the solenoid valve. Doing so may cause water to leak out of the valve.

Temperature and Pressure: 90 PSI Max. 120 degrees F Max.
Flow Direction: Direction matters! Connect the solenoid to your household water or Reverse Osmosis system through the valve in the direction indicated by the arrow stamped on the valve body.
Dimensions: Length 1.625", Width 0.875", Height 2.375"
Cord Types and Lengths: 2 prong power cord 18 Gauge, 3 feet in length. Solenoid leads are 18" in length. Connection is soldered and double heatshrinked.
Solenoid Valve
$25    
Solenoid Valve
(No Fittings or Cord)
$15