--- product_id: 205500056 title: "Seaflo 42 Series Diaphragm Pump with Bypass for Reduced Cycling 12V/24V 3.0GPM 55PSI (12 Volts)" brand: "seaflo" price: "146234CFA" currency: XOF in_stock: true category: "Seaflo" url: https://www.desertcart.sn/products/205500056-seaflo-42-series-diaphragm-pump-with-bypass-for-reduced-cycling store_origin: SN region: Senegal --- # 12V/24V dual voltage power 3.0 GPM consistent flow Quiet operation with bypass tech Seaflo 42 Series Diaphragm Pump with Bypass for Reduced Cycling 12V/24V 3.0GPM 55PSI (12 Volts) **Brand:** seaflo **Price:** 146234CFA **Availability:** ✅ In Stock ## Summary > 💧 Elevate your water game with quiet, reliable power that keeps you flowing—anywhere, anytime. ## Quick Answers - **What is this?** Seaflo 42 Series Diaphragm Pump with Bypass for Reduced Cycling 12V/24V 3.0GPM 55PSI (12 Volts) by seaflo - **How much does it cost?** 146234CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/205500056-seaflo-42-series-diaphragm-pump-with-bypass-for-reduced-cycling) ## 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 - • **Power Meets Precision:** Dual voltage (12V/24V) adapts seamlessly to your setup, powering up to 3.0 GPM with 55 PSI pressure for reliable performance. - • **Plug & Play Installation:** Standard 1/2"-14 MNPT ports and mounting footprint make integration into marine, RV, or off-grid systems a breeze—no hassle, just flow. - • **Whisper-Quiet Water Flow:** Integrated bypass reduces cycling and noise, delivering smooth, steady water pressure without the usual pump racket. - • **Self-Priming & Run-Dry Safe:** Effortlessly self-primes up to 6 feet and protects itself from damage during dry runs—perfect for unpredictable water conditions. - • **Built to Last, Backed to Trust:** Industry-leading 4-year warranty and durable Santoprene diaphragm with EPDM valves ensure long-term, maintenance-free operation. ## Overview The SEAFLO 42 Series Diaphragm Pump is a compact, high-performance 12V/24V pump delivering 3.0 GPM at 55 PSI with self-priming up to 6 feet. Featuring an internal bypass for reduced cycling and noise, durable Santoprene diaphragm and EPDM valves, and backed by a 4-year warranty, it’s engineered for marine, RV, and off-grid potable water systems requiring reliable, quiet, and maintenance-free operation. ## Description SEAFLO 42 Series Diaphragm Pump with Bypass for Reduced Cycling 12V 3.0GPM 55PSIMeet our newest addition to our diaphragm pumps: the 42 series. It retains the raw power and pressure of its predecessors, but also can adapt to situations where huge flow is not needed. Compact but capable, it is a great fit for tight spaces. It also may be configured with different inlet types, each with their own unique fittings, to be sure that it fits any application you can find.TYPICAL APPLICATIONSMarine,RV,Agricultural Spraying,General Industrial,Filtration,Beverage Processing,Solar Water System.DETAILSType: 4 Chamber positive displacement diaphragm pump, self priming, capable of being run dryControl Type: Pressure switch & By pass controlMax Recommended Temperature: 60° C（140° F）Priming Capabilities: 6 feet (1.8 m) suction liftRe-start Pressure: Shut-off Pressure 55 PSI : 41 PSI ±5 PSI (±0.3 bar)Inlet/Outlet Ports: 1/2"-14 MNPTWeight: 4.0 lbs (1.9 kg)MOTORLeads: 16 AWG, 9.4" (24 cm) long with 2-Pin connector / LeadsDuty Cycle: IntermittentMax.Amp Draw: 7.5 AFuse: 11.3 ASTANDARD PUMP CONFIGURATIONSModel: SFDP1-030-055-42Open Flow(GPM/LPM): 3.0 / 11.3Voltage: 12 VControl Type: switch & By passMax Draw: 7.5 AShut-off Pressure(PSI/BAR): 55 / 3.8Valves: EPDMDiaphragm: SantoprenePorts: 1/2"-14 MNPTWire Connections: 2-Pin/Leads ## 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. - [ NSF UL CSA CERTIFIED FOR POTABLE WATER ]: Fully certified to NSF/ANSI/CAN 61 & 372, NSF 24, UL 778, and CSA C22.2 No.108, ensuring compliance for safe potable water use 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 | 51,296 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 19 in Boat Water Pressure Pumps | | Brand | Seaflo | | Colour | Orange | | Customer Reviews | 4.4 4.4 out of 5 stars (2,187) | | EU Spare Part Availability Duration | 4 Years | | Flow Rate | 3 Gallons Per Minute | | Included Components | 51S01 Filter, 51F01 Fitting | | Item Dimensions L x W x H | 20.2L x 12.5W x 11.1H centimetres | | Item Weight | 2.18 kg | | Manufacturer | SEAFLO | | Material | 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 | | Number of Items | 1 | | Part Number | SFDP1-030-055-42 | | Power source | Adaptors | | Product Style | Diaphragm | | UPC | 647336945584 715934427631 | | Unit Count | 1.0 count | | Usage | Marine, RV, Agricultural Spraying, General Industrial, Filtration, Beverage Processing, Solar Water System, Homeowner, Traveling, Construction | | Voltage | 12 Volts (DC) | ## Product Details - **Brand:** Seaflo - **Colour:** Orange - **Item weight:** 2.18 kg - **Maximum flow rate:** 3 Gallons Per Minute - **Maximum lifting height:** 6 Feet - **Power source:** Adaptors - **Product dimensions:** 20.2L x 12.5W x 11.1H centimetres - **Style:** Diaphragm - **Voltage:** 12 Volts (DC) ## Images ![Seaflo 42 Series Diaphragm Pump with Bypass for Reduced Cycling 12V/24V 3.0GPM 55PSI (12 Volts) - Image 1](https://m.media-amazon.com/images/I/71BBc2artAL.jpg) ![Seaflo 42 Series Diaphragm Pump with Bypass for Reduced Cycling 12V/24V 3.0GPM 55PSI (12 Volts) - Image 2](https://m.media-amazon.com/images/I/41RexXi4k5L.jpg) ![Seaflo 42 Series Diaphragm Pump with Bypass for Reduced Cycling 12V/24V 3.0GPM 55PSI (12 Volts) - Image 3](https://m.media-amazon.com/images/I/41wlxJ8ZLKL.jpg) ![Seaflo 42 Series Diaphragm Pump with Bypass for Reduced Cycling 12V/24V 3.0GPM 55PSI (12 Volts) - Image 4](https://m.media-amazon.com/images/I/41t0ZjoV07L.jpg) ![Seaflo 42 Series Diaphragm Pump with Bypass for Reduced Cycling 12V/24V 3.0GPM 55PSI (12 Volts) - Image 5](https://m.media-amazon.com/images/I/41dtaTceJNL.jpg) ## Available Options This product comes in different **Size** 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. ## 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.sn/products/205500056-seaflo-42-series-diaphragm-pump-with-bypass-for-reduced-cycling](https://www.desertcart.sn/products/205500056-seaflo-42-series-diaphragm-pump-with-bypass-for-reduced-cycling) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-08-28*