NX fully automatic bottle heaters are pressure controlled so you are always at the proper nitrous pressure. Heater element has surface temperatures above 300 degrees. This element can take a bottle from ice cold to operating pressure in minutes. Includes heater element, automatic pressure switch, HD 40 amp relay and harness and a 6AN manifold. Due to the adjustability of the pressure switch contained in this kit, it is compatible with all nitrous kits on the market. Easy to use set-screw for making pressure adjustments. Can be adjusted from 900 P.S.I. to 1200 P.S.I. Switch has a 50 P.S.I. working window for consistent bottle pressure. Bottle Heating Element Specs: 240 Watts @ 12V, 312 Watts @ 13.8V, 425 Watts @ 16V Pressure Switch Specs: 1/8 NPT, Pre-Set at 1050 P.S.I.