{"product_id":"jabsco-par-max-3-fresh-water-pump-31395-4012-3a-12v-3-gpm-40-psi-self-priming","title":"Jabsco Par-Max 3 Fresh Water Pump 31395-4012-3A - 12V, 3 GPM, 40 PSI Self-Priming","description":"\u003cp\u003eThe Jabsco Par-Max 3 is a 12V fresh water pump built to bring home-style water pressure to a boat's onboard plumbing. A pressure-controlled diaphragm delivers on-demand flow through an integrated sealed pressure switch, so the pump cycles on automatically whenever a tap or shower is opened and shuts off when it closes. The pump is self-priming and can run dry without damage to the unit, which protects it if the tank runs low or a line loses prime.\u003c\/p\u003e\u003cp\u003eAn enclosed motor design gives the pump a long working life even when running at higher pressures, while an integrated bypass module reduces cycling and smooths out flow at the tap. Dampening feet under the housing absorb vibration so the pump runs quietly below decks. Plumbing connections are simplified with quick-connect ports: the pump ships with an inline 40 mesh quick-connect strainer to catch debris before it reaches the diaphragm, along with 2 x 1\/2 inch quick-connect straight hosebarb fittings for fast hookup and servicing.\u003c\/p\u003e\u003cp\u003eRated for 3 GPM (7.6 LPM) of open flow at 40 PSI, the Par-Max 3 suits boats and RVs with multiple freshwater outlets that need consistent pressure across sinks, showers, and washdown points.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Jabsco\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 31395-4012-3A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Style:\u003c\/strong\u003e Submersible\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 12 Volts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Flow Rate:\u003c\/strong\u003e 3 Gallons Per Minute (7.6 LPM)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Pressure:\u003c\/strong\u003e 40 PSI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuick Connect Strainer:\u003c\/strong\u003e Inline 40 Mesh\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHosebarb Fittings:\u003c\/strong\u003e 2 x 1\/2 inch adapters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Dimensions:\u003c\/strong\u003e 9.09 inches L x 4.21 inches W x 4.21 inches H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 5 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Plastic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Source:\u003c\/strong\u003e Corded Electric\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1 year\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 671880841801\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat flow rate and pressure does the Jabsco Par-Max 3 pump deliver?\u003c\/strong\u003e The Par-Max 3 (31395-4012-3A) delivers 3 GPM (7.6 LPM) of open flow at 40 PSI, making it suited to boats with several freshwater outlets running at once.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this pump self-priming?\u003c\/strong\u003e Yes, the 31395-4012-3A is self-priming and can run dry without damage to the unit, so a low tank or momentary loss of prime will not harm the pump.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat voltage does this water pump run on?\u003c\/strong\u003e This Jabsco fresh water pump operates on 12 volts, the standard supply for most boat and RV DC electrical systems.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does the pump turn on and off automatically?\u003c\/strong\u003e An integrated sealed pressure switch gives the Par-Max 3 on-demand operation, cycling the pump on when a tap opens and off when pressure builds back up with the tap closed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions and weight of the 31395-4012-3A pump?\u003c\/strong\u003e The pump measures 9.09 inches long by 4.21 inches wide by 4.21 inches high and weighs 5 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the pump housing made of?\u003c\/strong\u003e The Par-Max 3 uses a plastic housing in black, which helps protect the motor from corrosion in a marine environment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat fittings and strainer come with this pump?\u003c\/strong\u003e It comes equipped with an inline 40 mesh quick-connect strainer to filter debris, plus 2 x 1\/2 inch quick-connect straight hosebarb fittings for hookup and servicing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does the Par-Max 3 compare to the Par-Max 2 pump?\u003c\/strong\u003e The Par-Max 3 (31395-4012-3A) is rated for 3 GPM at 40 PSI, while the Par-Max 2 is rated for 2 GPM at 35 PSI; both use the same quick-connect strainer and hosebarb fitting design, so the Par-Max 3 is the higher-flow, higher-pressure option of the two.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this pump run quietly below decks?\u003c\/strong\u003e Dampening feet under the 31395-4012-3A housing absorb vibration, and an integrated bypass module reduces cycling for quieter, smoother operation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the enclosed motor affect the pump's lifespan?\u003c\/strong\u003e Yes, the enclosed motor design on this Jabsco pump is built for a long working life even when the pump is running at higher pressures.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included with the Jabsco Par-Max 3 pump?\u003c\/strong\u003e The 31395-4012-3A ships with the pump unit, an inline 40 mesh quick-connect strainer, and 2 x 1\/2 inch quick-connect straight hosebarb fittings.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat warranty comes with this fresh water pump?\u003c\/strong\u003e The Jabsco Par-Max 3 fresh water pump, part number 31395-4012-3A, carries a 1 year warranty.\u003c\/p\u003e","brand":"Jabsco","offers":[{"title":"Default Title","offer_id":49028222877915,"sku":"ITT-31395-4012-3A","price":148.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/Jabsco_Par-Max_3_FreshWater_Pump__64972.1722348268.500.750.jpg?v=1785164576","url":"https:\/\/www.goodvibesmarina.com\/products\/jabsco-par-max-3-fresh-water-pump-31395-4012-3a-12v-3-gpm-40-psi-self-priming","provider":"Good Vibes Marina","version":"1.0","type":"link"}