Built-in Safety prevents overload. The pump body is sealed to prevent incidental moisture and dust from entering. Able to operate in a wet environment. Self priming function allows it to be mounted above water tank. Sealed switches and electro coating to inhibit corrosion. Soft rubber mounting tabs to reduce vibrations. When installed correctly, Marine Duty Fresh Water Pumps provide years of quiet operation. Widely used for Garden sprinklers, shower, water taps in the boat, caravan or motor home, spray agricultural chemicals, fertiliser, bug spray. The Topland 12V Self Priming Diaphragm Water Pump is a high quality positive displacement diaphragm pump that can run dry without damage. The pump features an on/off demand pressure switch with plug-in quick connections. Ideal for spot spraying applications where a single nozzle is used.