--- product_id: 26770777 title: "SEAFLO 42 Series 12V RV Water Pump, 3.0 GPM 55 PSI, 4-Year Warranty, On-Demand Fresh Water Pressure Pump with Bypass, Self-Priming for RVs, Boats, Marine & Off-Grid Use, UL Listed" brand: "seaflo" price: "€ 201.93" currency: EUR in_stock: true reviews_count: 13 category: "Seaflo" url: https://www.desertcart.hr/products/26770777-seaflo-42-series-12v-rv-water-pump-3-0-gpm store_origin: HR region: Croatia --- # 12V DC power 3.0 GPM flow rate 4-year warranty SEAFLO 42 Series 12V RV Water Pump, 3.0 GPM 55 PSI, 4-Year Warranty, On-Demand Fresh Water Pressure Pump with Bypass, Self-Priming for RVs, Boats, Marine & Off-Grid Use, UL Listed **Brand:** seaflo **Price:** € 201.93 **Availability:** ✅ In Stock ## Summary > 🚿 Elevate your water game—quiet, powerful, and built to outlast the adventure! ## Quick Answers - **What is this?** SEAFLO 42 Series 12V RV Water Pump, 3.0 GPM 55 PSI, 4-Year Warranty, On-Demand Fresh Water Pressure Pump with Bypass, Self-Priming for RVs, Boats, Marine & Off-Grid Use, UL Listed by seaflo - **How much does it cost?** € 201.93 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/26770777-seaflo-42-series-12v-rv-water-pump-3-0-gpm) ## Best For - seaflo enthusiasts ## Why This Product - Trusted seaflo brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last & Quiet:** Durable Santoprene diaphragm and EPDM valves with vibration-absorbing base for whisper-quiet operation. - • **Effortless Self-Priming:** Self-primes up to 6 feet and runs dry safely—perfect for off-grid and marine setups. - • **Plug & Play Installation:** Standard 1/2"-14 MNPT ports and mounting pattern make upgrades and replacements hassle-free. - • **Consistent High Performance:** Delivers steady 3.0 GPM at 55 PSI for reliable water pressure anytime. - • **Smooth Flow with Bypass Tech:** Integrated bypass reduces cycling and pressure spikes for seamless water delivery. ## Overview The SEAFLO 42 Series 12V RV Water Pump offers a robust 3.0 GPM flow at 55 PSI with self-priming up to 6 feet, backed by a 4-year warranty. Engineered for RVs, boats, and off-grid use, it features durable Santoprene and EPDM components, an internal bypass for smooth pressure, and a vibration-dampening base for quiet operation. Certified safe for potable water and UL listed, it’s the trusted choice for professionals demanding reliable, easy-to-install freshwater pressure solutions. ## Description desertcart.com: SEAFLO 42 Series 12V RV Water Pump, 3.0 GPM 55 PSI, 4-Year Warranty, On-Demand Fresh Water Pressure Pump with Bypass, Self-Priming for RVs, Boats, Marine & Off-Grid Use, UL Listed : Automotive Review: Great improvement and easy installation - Perfect replacement for my OEM pump. Installed it quickly and had it working in no time at all. I feel like this pump is superior to the original as it seems to have better pressure, is quieter and with the SEAFLO accumulation tank added, it runs less frequently. Really happy with this product. Review: This pump is a workhorse! - Excellent product. Super quiet, very easy to install, perfect fit for my setup, very well made. It comes with a rubber base to absorb vibrations which makes it quieter than it already is. I’ve been using it daily for about a week now without any issues. My daily use is basically to water my garden which takers about 30 minutes of continuous use and supply a toilet and a sink that are off grid. Suction head of my setup is about 2 feet and the other end head is about 10 feet, no issues at all, pressure is great and the auto shut off works flawlessly. Mine is powered by a small battery bank of about 50amps that is connected to a wind generator so is completely off grid. If you want a quiet, powerful, easy to install, great quality 12 volts pump; look no further this is the one you need!!! ## Features - [ SPECIFICATIONS ]: Model SFDP1-030-055-42 | Voltage 12V | 3.0 GPM (11.3 LPM) | 55 PSI | Max Draw 7.0A | Self-Priming 6 ft | EPDM Valves | Santoprene Diaphragm | Ports 1/2"-14 MNPT | 4-Year Warranty - [ 4-YEAR LIMITED WARRANTY ]: Backed by SEAFLO’s industry-leading 4-Year Warranty, ensuring durability, confidence, and long-term protection for freshwater systems in marine, RV, and off-grid installations. - [ CERTIFIED FOR POTABLE WATER SYSTEMS ]: Tested to NSF/ANSI/CAN 61 & 372 for safe drinking water contact and evaluated to NSF 24 and UL 778 performance standards, ensuring reliable operation in RV, marine, and off-grid pressurized water systems. - [ HIGH-PERFORMANCE CONTINUOUS-DUTY OPERATION ]: Built for extended runtime, this pump delivers consistent 3.0 GPM flow and 55 PSI pressure, making it ideal for marine, RV, and off-grid systems that demand long-lasting reliability. - [ SELF-PRIMING WITH RUN-DRY PROTECTION ]: Capable of self-priming up to 6 ft and safely running dry, the pump offers dependable performance during tank changes, low-water events, or installations requiring elevated mounting locations. - [ INTERNAL BYPASS FOR SMOOTH QUIET FLOW ]: Integrated bypass technology reduces short cycling and pressure fluctuations, producing smoother water delivery and quieter overall operation in on-demand freshwater systems. - [ DURABLE AND QUIET DESIGN ]: Santoprene diaphragm and EPDM valves provide long-term resistance to wear, while the rubber mounting base reduces vibration and noise for smoother, quieter operation in tight spaces. - [ EASY INSTALLATION WITH STANDARD MOUNTING PATTERN ]: Features an industry-standard mount footprint and 1/2"-14 MNPT ports, allowing simple integration with common plumbing layouts in RVs, boats, and tiny home water systems. - [ VERSATILE APPLICATIONS ACROSS MULTIPLE SYSTEMS ]: Ideal for pressurized water systems in RVs, boats, caravans, cabins, and agricultural setups, handling multiple fixtures with reliable performance and low maintenance needs. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01CQ7DD0S | | Best Sellers Rank | #2,220 in Automotive ( See Top 100 in Automotive ) #1 in RV Water Pumps & Accessories | | Brand | SEAFLO | | Brand Name | SEAFLO | | Color | Orange | | Customer Reviews | 4.4 out of 5 stars 2,255 Reviews | | Flow Rate | 3 gpm | | Included Components | 51S01 Filter, 51F01 Fitting | | Item Dimensions L x W x H | 7.96"L x 4.92"W x 4.37"H | | Item Weight | 4.8 pounds | | Manufacturer | SEAFLO | | Manufacturer Part Number | SFDP1-030-055-42 | | Material | Pump head: nylon. Pump head cover: PPS. Motor housing: polypropylene. Valves/seals: EPDM. Diaphragm: Santoprene Material Pump head: nylon. Pump head cover: PPS. Motor housing: polypropylene. Valves/seals: EPDM. Diaphragm: Santoprene See more | | Material Type | Pump head: nylon. Pump head cover: PPS. Motor housing: polypropylene. Valves/seals: EPDM. Diaphragm: Santoprene | | Maximum Lifting Height | 6 feet | | Model Number | SFDP1-030-055-42 | | Power Source | DC | | Product Dimensions | 7.96"L x 4.92"W x 4.37"H | | Product Style | 3.0 GPM - 55 PSI | | Specific Uses For Product | Marine, RV, Off-Grid | | Style | 3.0 GPM - 55 PSI | | UPC | 647336945584 715934427631 | | Voltage | 12 volts_of_direct_current | ## Product Details - **Brand:** SEAFLO - **Color:** Orange - **Item Weight:** 4.8 pounds - **Maximum Flow Rate:** 3 gpm - **Maximum Lifting Height:** 6 feet - **Power Source:** DC - **Product Dimensions:** 7.96"L x 4.92"W x 4.37"H - **Style:** 3.0 GPM - 55 PSI - **Voltage:** 12 volts_of_direct_current ## Images ![SEAFLO 42 Series 12V RV Water Pump, 3.0 GPM 55 PSI, 4-Year Warranty, On-Demand Fresh Water Pressure Pump with Bypass, Self-Priming for RVs, Boats, Marine & Off-Grid Use, UL Listed - Image 1](https://m.media-amazon.com/images/I/71GeYf5nuCL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: Lousy house pressure, if I connect outlet of garden faucet to inlet of this pump will I get better outlet pressure to drive an impact type sprinkler?** A: No it will not do anything for you... This is also 12V not 110 so maybe you should look into your houses old plumbing or contact city about your low water pressure **Q: Automatic shut off?** A: Yes it has a pressure switch that shuts it off when you shut the flow of water off **Q: What is the power usage for this motor? Amp hours would be best, but pretty much any measure would be helpful.** A: This is a 12V DC water pressure pump. The max amperage draw is 7.5 Amps. All technical specifications on the pump can be found here: http://seaflo.com/en-us/product/detail/609.html **Q: What is the wattage need when using a power supply** A: On the placard for the product that I bought, as well as in the product specs, the amperage is listed as 3.5A, with a maximum of 7.5A(presumably when the pump starts). Ohm’s law states that P=VI, so this yields an average of 12V*3.5A = 42W with a worst case of 12V*7.5A=90W. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great improvement and easy installation *by R***E on July 5, 2026* Perfect replacement for my OEM pump. Installed it quickly and had it working in no time at all. I feel like this pump is superior to the original as it seems to have better pressure, is quieter and with the SEAFLO accumulation tank added, it runs less frequently. Really happy with this product. ### ⭐⭐⭐⭐⭐ This pump is a workhorse! *by J***C on July 19, 2025* Excellent product. Super quiet, very easy to install, perfect fit for my setup, very well made. It comes with a rubber base to absorb vibrations which makes it quieter than it already is. I’ve been using it daily for about a week now without any issues. My daily use is basically to water my garden which takers about 30 minutes of continuous use and supply a toilet and a sink that are off grid. Suction head of my setup is about 2 feet and the other end head is about 10 feet, no issues at all, pressure is great and the auto shut off works flawlessly. Mine is powered by a small battery bank of about 50amps that is connected to a wind generator so is completely off grid. If you want a quiet, powerful, easy to install, great quality 12 volts pump; look no further this is the one you need!!! ### ⭐⭐⭐⭐⭐ High quality, quiet, reliable *by J***T on July 4, 2025* I use this pump as the main pump for a domestic water system at my off grid cabin. It's powered by a 12v battery that is charged by a solar panel, and it pulls water from a 100 gallon agricultural spray tank. It has plenty of flow and pressure for washing dishes or taking a shower, and it puts out fairly steady pressure for a diaphragm pump- I haven't needed to add a surge tank. It's mounted to one of the posts under the floor of the cabin and it's quiet enough to not really be very audible when running. It's survived several seasons of use without noticeable wear and tear. I drain it down every winter and remove the screen and have had no freeze damage. The water it pumps from the tank ranges in temperature from 45 degrees to 90 degrees depending on the season and it doesn't seem to make any difference to the pump. ## Frequently Bought Together - SEAFLO 42 Series 12V 3.0 GPM 55PSI Continuous Duty Diaphragm Pump with Bypass for Reduced Cycling, Fresh/Salt Water, 4-Year Warranty, UL & CSA Certified, Self-Priming for Marine, RV, Off-Grid, Boats - SEAFLO Accumulator Tank Water Pump Flow Control with Internal Bladder - 125 PSI, 23.5 oz (0.75 L) | Reduces Pump Cycling and Smooths Water Flow for Marine, RV, and Off-Grid Systems --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/26770777-seaflo-42-series-12v-rv-water-pump-3-0-gpm](https://www.desertcart.hr/products/26770777-seaflo-42-series-12v-rv-water-pump-3-0-gpm) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-08-07*