--- product_id: 255153934 title: "42 Series Diaphragm Pump with Bypass for Reduced Cycling 12V/24V 3.0GPM 55PSI (12 Volts)" brand: "seaflo" price: "874.70 DT" currency: TND in_stock: true reviews_count: 5 url: https://www.desertcart.tn/products/255153934-42-series-diaphragm-pump-with-bypass-for-reduced-cycling-12v store_origin: TN region: Tunisia --- # 12V/24V dual voltage power 3.0 GPM high flow rate Bypass tech reduces cycling 42 Series Diaphragm Pump with Bypass for Reduced Cycling 12V/24V 3.0GPM 55PSI (12 Volts) **Brand:** seaflo **Price:** 874.70 DT **Availability:** βœ… In Stock ## Summary > πŸ’§ Pump smarter, not harder β€” power and precision in one compact package! ## Quick Answers - **What is this?** 42 Series Diaphragm Pump with Bypass for Reduced Cycling 12V/24V 3.0GPM 55PSI (12 Volts) by seaflo - **How much does it cost?** 874.70 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/255153934-42-series-diaphragm-pump-with-bypass-for-reduced-cycling-12v) ## 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 - β€’ **Built to Last:** 2-year warranty backed by RoHS, SGS, and ISO certified quality - β€’ **Smart Cycling:** Internal bypass technology minimizes wear with reduced cycling - β€’ **Flow Like a Pro:** Delivers a robust 3.0 gallons per minute for efficient pumping - β€’ **Compact & Adaptable:** Fits tight spaces with customizable inlet fittings for any setup - β€’ **Power Meets Precision:** Dual 12V/24V compatibility for versatile power needs ## Overview The SEAFLO 42 Series Diaphragm Pump is a compact, high-performance 12V/24V utility pump delivering 3.0 GPM at 55 PSI. Featuring self-priming, run-dry safety, and innovative bypass technology to reduce cycling, it’s engineered for durability and adaptability across marine, RV, agricultural, and industrial applications. Certified to global standards and backed by a 2-year warranty, it’s the reliable choice for professionals demanding efficiency and longevity. ## Description SEAFLO 42 Series Diaphragm Pump with Bypass for Reduced Cycling 12V 3.0GPM 55PSI Meet 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 APPLICATIONS Marine,RV,Agricultural Spraying,General Industrial,Filtration,Beverage Processing,Solar Water System. DETAILS Type: 4 Chamber positive displacement diaphragm pump, self priming, capable of being run dry Control Type: Pressure switch & By pass control Max Recommended Temperature: 60Β° C（140Β° FοΌ‰ Priming Capabilities: 6 feet (1.8 m) suction lift Re-start Pressure: Shut-off Pressure 55 PSI : 41 PSI Β±5 PSI (Β±0.3 bar) Inlet/Outlet Ports: 1/2"-14 MNPT Weight: 4.0 lbs (1.9 kg) MOTOR Leads: 16 AWG, 9.4" (24 cm) long with 2-Pin connector / Leads Duty Cycle: Intermittent Max.Amp Draw: 7.5 A Fuse: 11.3 A STANDARD PUMP CONFIGURATIONS Model: SFDP1-030-055-42 Open Flow(GPM/LPM): 3.0 / 11.3 Voltage: 12 V Control Type: switch & By pass Max Draw: 7.5 A Shut-off Pressure(PSI/BAR): 55 / 3.8 Valves: EPDM Diaphragm: Santoprene Ports: 1/2"-14 MNPT Wire Connections: 2-Pin/Leads ## Features - Continuous duty and On-demand use. Self priming and run dry safe. - Internal bypass technology reduces cycling. - 16AWG,9.4" long Leads. 13mm (1/2") MNPT threaded connections, with adaptors to 13mm hose barb - 2 Year Warranty - Meets or exceeds RoHS, SGS, and ISO standards ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B01CQ7DD0S | | Best Sellers Rank | #3 in Boat Plumbing | | Date First Available | 28 May 2016 | | Is Discontinued By Manufacturer | No | | Item Model Number | SFDP1-030-055-42 | | Manufacturer | SEAFLO | | Product Dimensions | 20.24 x 12.5 x 11.1 cm; 2.18 kg | ## Product Details - **Brand:** SEAFLO - **Colour:** Orange - **Material:** Polypropylene (PP), Stainless Steel - **Product dimensions:** 20.2L x 12.5W x 11.1H centimeters - **Style:** Diaphragm ## Images ![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/71GeYf5nuCL.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. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Recommended *by on Reviewed in Australia 8 July 2024* Purchased with the pump Seaflow accumulator tank- great combination, very smooth consistent water flow and volumes super low. Fantastic purchase ### ⭐⭐⭐⭐⭐ Seaflo o melhor *by on Reviewed in Brazil 13 February 2026* Excelente! ### ⭐⭐⭐⭐ conectar *by on Reviewed in Spain 9 May 2026* todo perfecto ## 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? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/255153934-42-series-diaphragm-pump-with-bypass-for-reduced-cycling-12v](https://www.desertcart.tn/products/255153934-42-series-diaphragm-pump-with-bypass-for-reduced-cycling-12v) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-16*