Buyers Products Universal Pre-Wet Kit without Reservoir enhances your salt spreading application by adding a liquid ice-melting agent to the salt. The liquid helps salt stick to surfaces and can melt ice at lower temperatures than salt alone. Its 12V DC-powered electric diaphragm pump is rated at 3 GPM/45 PSI. It features a variable speed system that allows you to adjust the amount of liquid sprayed on salt as you drive, via your in-cab controller. The hydraulic system provides 8 GPM @ 1750 RPM (150 PSI) with a durable bronze pump and gears and stainless steel shaft. The LS2 Electric Kit Includes: diaphragm pump, in-cab digital controller, and the hoses, fittings, connectors, wiring, brackets, and tie downs needed to build a custom pre-wet system. Add a Buyers Products reservoir (sold separately) to complete your pre-wet system. The LS102 and LS102H kits just include the pump enclosure and harnesses for the electric and hydraulic kits and do not include plumbing.