--- product_id: 255153934 title: "Seaflo 42 Series Diaphragm Pump with Bypass for Reduced Cycling 12V/24V 3.0GPM 55PSI (12 Volts)" brand: "seaflo" price: "846.38 DT" currency: TND in_stock: true reviews_count: 5 category: "Seaflo" url: https://www.desertcart.tn/products/255153934-seaflo-42-series-diaphragm-pump-with-bypass-for-reduced-cycling store_origin: TN region: Tunisia --- # 12V/24V dual voltage power 3.0 GPM high flow rate Bypass tech reduces cycling Seaflo 42 Series Diaphragm Pump with Bypass for Reduced Cycling 12V/24V 3.0GPM 55PSI (12 Volts) **Brand:** seaflo **Price:** 846.38 DT **Availability:** ✅ In Stock ## Summary > 💧 Pump up your flow, not your downtime! ## 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?** 846.38 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-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 - • **Built to Last:** Durable polypropylene and stainless steel build with 2-year warranty and global standards compliance - • **Smart Cycling:** Internal bypass technology minimizes pump cycling for longer life - • **Flow That Keeps Up:** Delivers a steady 3.0 gallons per minute for efficient water movement - • **Compact & Adaptable:** Fits tight spaces with multiple inlet configurations and 1/2" MNPT ports - • **Power Meets Precision:** Dual 12V/24V compatibility for versatile power setups ## Overview The SEAFLO 42 Series Diaphragm Pump is a compact, high-performance 12V/24V utility pump delivering 3.0 GPM at 55 PSI. Featuring internal bypass technology to reduce cycling, it ensures smooth, continuous operation ideal for marine, RV, agricultural, and industrial applications. Built with durable polypropylene and stainless steel, it meets RoHS, SGS, and ISO standards and comes with a 2-year warranty, making it a reliable choice for professionals demanding efficiency and longevity. ## 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 Review: Recommended - Purchased with the pump Seaflow accumulator tank- great combination, very smooth consistent water flow and volumes super low. Fantastic purchase Review: Seaflo o melhor - Excelente! ## 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 | #14,458 in Sporting Goods ( See Top 100 in Sporting Goods ) #20 in Boat Plumbing | | Brand | SEAFLO | | Brand Name | SEAFLO | | Color | Orange | | Colour | Orange | | Customer Reviews | 4.4 out of 5 stars 2,170 Reviews | | 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 centimeters | | Item Weight | 2.18 kg | | Manufacturer | SEAFLO | | Manufacturer Part Number | SFDP1-030-055-42 | | Material | Polypropylene (PP) , Stainless Steel | | Material Type | Polypropylene (PP), Stainless Steel | | Maximum Lifting Height | 6 Feet | | Model Number | SFDP1-030-055-42 | | Number of Items | 1 | | Power Source | Corded Electric | | Power source | Corded Electric | | Product Style | Diaphragm | | Product dimensions | 20.2L x 12.5W x 11.1H centimeters | | Specific Uses For Product | Marine, RV, Agricultural Spraying, General Industrial, Filtration, Beverage Processing, Solar Water System, Homeowner, Traveling, Construction | | Style | Diaphragm | | UPC | 647336945584 715934427631 | | Unit Count | 1 Count | | Voltage | 12 Volts (DC) | ## 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 ![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/71GeYf5nuCL.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/81K7j8NvTwL.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/81WsZozt4FL.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/81+jvSwQZvL.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/81L8iMW0PrL.jpg) ## 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 J***N on 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 J***A on 13 February 2026* Excelente! ### ⭐⭐⭐⭐ conectar *by A***. on 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? - 🛒 **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.tn/products/255153934-seaflo-42-series-diaphragm-pump-with-bypass-for-reduced-cycling](https://www.desertcart.tn/products/255153934-seaflo-42-series-diaphragm-pump-with-bypass-for-reduced-cycling) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-09*