BACK TO INDEX PRODUCT SUPPORT CONTACT US WHAT’S NEW No battery room should be without this essential maintenance tool. Simply connect the Watering Gun to a standard water hose or a Deionizer, put the tip of the gun into the cell and squeeze the ergonomic trigger. The mechanism will automatically shut off at exactly the right electrolyte level. The reliable PS Watering Gun speeds up battery watering, improves filling accuracy, and improves operator safety. It’s no wonder that it has been America's most popular battery maintenance tool for over 20 years. Battery Watering Gun Models All automatic shutoff models have the following features: Automatic shutoff & pressure regulator High flow rate – 2 gallon/minute (8 liters/min) Immediate installation – Attaches to any standard hose with included quick connect fittings Insulated against short circuits Watering Gun Model B (GUN-B) Original, best selling Watering Gun 7/8 inch (22mm) nozzle diameter fits most industrial, stationary and golf car batteries. Compatible with Philadelphia Scientific Flip-Top vent cap. Watering Gun Model G (GUN-G)   Narrow 5/8 inch (16mm) nozzle diameter made specially for small vent openings such as truck, bus and diesel starter batteries Watering Gun Model C (GUN-C) Same narrow 5/8 inch (16mm) nozzle as Model G Gun, but has a steeper bend in the nozzle for applications where access space is limited Watering Gun Model R (GUN-R) Same as the Model C Gun, but equipped with a removable extension. This Gun was developed primarily for railroads to water diesel starter  batteries without removing the cells from their compartments. Standard extension is 9 inches, making the total Gun over 27 inches long.  Any length extension can be ordered Extensions are removable without tools Extensions may be purchased individually for use with any of Battery Watering Guns   Watering Gun Model S (GUN-S) Special Gun developed for watering transparent type stationary batteries only. Gun operates outside the cell and does not have automatic shutoff. Cone shaped nozzle injects water through funnels of the flame arrestor vents, allowing service without removal of vent caps Manually adjustable flow throttle Included quick connect fittings   Features & Benefits Automatic shutoff – The Watering Gun fill cells to precisely the correct level. The shutoff is so positive you can actually feel it. Safe – It keeps eyes and face away from battery hazards, and reduces backache from bending over batteries. It is insulated to prevent sparking on connectors. Reliable – The patented shutoff mechanism has been tested to 1 million cycles and proven in hundreds of thousands of tough applications worldwide. Powered by the water itself, it has no solenoids, no electronics and no wiring. Fast but gentle – The flow rate is about 2 gallons/minute (8 l/m) which is fast enough for the largest cells. Yet the flow is gentle enough to fill a coffee mug. No installation cost – Attach the Gun to any standard hose (or our Deionizer System) and you have a fully operating battery filling system. A built-in regulator automatically reduces high water pressure so no adjustments are needed ever. The minimum water pressure required is 15 psi (1.0 bar).