--- product_id: 419820325 title: "Seaflo 12V Dc 1.2 Gpm 35 Psi 21-Series Diaphragm Water Pressure Pump for Caravan/Rv/Boat/Marine" brand: "seaflo" price: "R2402" currency: ZAR in_stock: true reviews_count: 5 category: "Seaflo" url: https://www.desertcart.co.za/products/419820325-seaflo-12v-dc-1-2-gpm-35-psi-21-series store_origin: ZA region: South Africa --- # 12V DC power efficiency 1.2 GPM high flow rate Built-in 35 PSI pressure switch Seaflo 12V Dc 1.2 Gpm 35 Psi 21-Series Diaphragm Water Pressure Pump for Caravan/Rv/Boat/Marine **Brand:** seaflo **Price:** R2402 **Availability:** βœ… In Stock ## Summary > πŸ’§ Elevate your water game with smart, silent power on the move! ## Quick Answers - **What is this?** Seaflo 12V Dc 1.2 Gpm 35 Psi 21-Series Diaphragm Water Pressure Pump for Caravan/Rv/Boat/Marine by seaflo - **How much does it cost?** R2402 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/419820325-seaflo-12v-dc-1-2-gpm-35-psi-21-series) ## 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€’ **Compact Powerhouse:** Delivers a robust 1.2 gallons per minute flow rate for seamless water pressure on the go. - β€’ **Whisper-Quiet Operation:** Smooth, silent pumping keeps your environment peaceful without sacrificing performance. - β€’ **Plug & Play Installation:** Easy hose barb connections and low power draw make setup a breeze for busy professionals. - β€’ **Self-Priming & Dry-Run Safe:** Mount above tank and run dry without damageβ€”perfect for versatile marine and RV setups. - β€’ **Smart Auto-Pressure Control:** Built-in 35 PSI pressure switch ensures automatic start/stop for effortless water management. ## Overview The Seaflo 21-Series 12V Diaphragm Water Pressure Pump offers a compact, professional-grade solution delivering 1.2 gallons per minute at 35 PSI. Designed for marine, RV, and agricultural use, it features a built-in pressure switch for automatic operation, self-priming capability, and dry-run protection. Its low power consumption and quiet performance make it ideal for modern mobile lifestyles demanding reliability and efficiency. ## Description NEW 12V Self-Priming Water Pressure Pump 1.2 Gallons/Min (4.3 LPM) 35 PSI Product Details: This product is 100% brand new and comes in original color packing Powerful automatic pressure pump 1.2 Gallons Per Minute (4.3 LPM) capacity flow, and 35 PSI pressure Extremely efficient, very low current draw and offer high capacity output Self priming Smooth, silent operation Can run dry without damage Thermal overload and ignition protection Easy connecting system Low power draw Soft rubber mounts Professional grade pump - Ideal for marine, caravans/RV, and agriculture applications Built-in pressure switch, to automatically turn on and off as you turn your tap or nozzle on and off Beware of inferior non-genuine products on the market that claim to be just as good Specifications Voltage: 12V DC Flow capacity: 1.2 Gallons per minute (4.2 Litres per minute) Water pressure: 35 PSI Hose Outlets: Fixed 10mm (3/8") diam. hose tails Twin core wire Current Draw: 1.7 Amp (max. 2.7 Amp) Dimensions: Length 170mm x Width 100mm x Height 67mm Approvals: CE Applications For marine, RV, agriculture and recreational applications Suits all size boats, caravans, mobile homes, etc. For sinks, taps, showers, or toilets Other applications where you have to transfer water Review: Seaflo - Produto muito bom Review: Super compact, great performance - This little pump does a great job, particularly for how small it is. It was the perfect choice for my small truck/camper system. The plastic construction is robust and feels to be well manufactured. Installation is very simple: attach 3/8" ID hose to barb connectors with hose clamps and connect the positive and negative wires to your 12V source via a switch or relay. Water pressure was very good when running directly at full flow, but when running with partially open valve (restricted flow), the pump's pressure switch causes rapid on/off cycles. I chose to couple the pump with a 0.75L accumulator to eliminate this chatter and reduce electrical/mechanical wear. Very happy with the overall performance of this water pump. ## Features - The 21-Series Pumps are compact and designed for a wide range of applications including liquid transfer, spraying, circulation, filtration and dispensing - The 21-series of diaphragm pumps are self-priming and can be run dry without harm. It provides up to 1.2 gallons per minute - Built-in 35 PSI pressure switch for automatic stop/start - Self-priming allows it to be mounted above tank; able to run dry - 1.2 gallons per minute (4.2 liters per minute) Built-in thermal protector; 3/8-inch hose barb ports ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00DLKT4OO | | Best Sellers Rank | #70,116 in Garden & Outdoors ( See Top 100 in Garden & Outdoors ) #491 in High Pressure Pumps | | Brand | Seaflo | | Brand Name | Seaflo | | Colour | Black | | Customer Reviews | 4.3 out of 5 stars 1,529 Reviews | | EU Spare Part Availability Duration | 4 Years | | Flow Rate | 1.2 Gallons Per Minute | | Global Trade Identification Number | 00637776645502, 00640674580349, 00787721093749, 00810039498149, 06410038780111 | | Item Dimensions L x W x H | 16.5L x 9.7W x 6.4H Centimeters | | Item Weight | 1.5 Pounds | | Manufacturer | SEAFLO | | Manufacturer Part Number | SFDP1-012-035-21 | | Material | Plastic Metal | | Material Type | Plastic Metal | | Maximum Lifting Height | 4 Feet | | Model Number | SFDP1-012-035-21 | | Power Source | electric | | Product Dimensions | 16.5L x 9.7W x 6.4H Centimeters | | Product Style | Diaphragm | | Style | Diaphragm | | UPC | 640674580349 787721093749 615200881986 637776645502 | | Voltage | 12 Volts (DC) | ## Product Details - **Brand:** Seaflo - **Colour:** Black - **Item Weight:** 680 g - **Material:** Polypropylene (PP) - **Maximum Flow Rate:** 1.2 Gallons Per Minute - **Maximum Lifting Height:** 4 Feet - **Power Source:** electric - **Product Dimensions:** 16.5L x 9.7W x 6.4H Centimeters - **Style:** Diaphragm - **Voltage:** 12 Volts (DC) ## Images ![Seaflo 12V Dc 1.2 Gpm 35 Psi 21-Series Diaphragm Water Pressure Pump for Caravan/Rv/Boat/Marine - Image 1](https://m.media-amazon.com/images/I/614G+HCBm9L.jpg) ![Seaflo 12V Dc 1.2 Gpm 35 Psi 21-Series Diaphragm Water Pressure Pump for Caravan/Rv/Boat/Marine - Image 2](https://m.media-amazon.com/images/I/71UnV-NNfPL.jpg) ![Seaflo 12V Dc 1.2 Gpm 35 Psi 21-Series Diaphragm Water Pressure Pump for Caravan/Rv/Boat/Marine - Image 3](https://m.media-amazon.com/images/I/61MzEseI9CL.jpg) ![Seaflo 12V Dc 1.2 Gpm 35 Psi 21-Series Diaphragm Water Pressure Pump for Caravan/Rv/Boat/Marine - Image 4](https://m.media-amazon.com/images/I/61bCLlDAikL.jpg) ![Seaflo 12V Dc 1.2 Gpm 35 Psi 21-Series Diaphragm Water Pressure Pump for Caravan/Rv/Boat/Marine - Image 5](https://m.media-amazon.com/images/I/91VfzPIIYiL.jpg) ## Questions & Answers **Q: which side is the inlet ?** A: There is an arrow pointing from one end to the other. Inlet is the end the arrow starts from. Direction of flow is parallel to the arrow. **Q: can the cut off pressure be regulated/adjusted to about 15psi?** A: This pump is built with 35psi switch and can not adjusted to 15psi. Thank you! **Q: Im looking to make a water misting system off the side of my rv. Would this pump be good to run for several hours continuously?** A: Yes, it will run continuously for several hours. I've run it as a transfer pump when needed, and had it running for an entire day. Works great. **Q: Is it a wash down pump?** A: This pump can be used as a wash down pump. Thank you! ## Customer Reviews ### ⭐⭐⭐⭐⭐ Seaflo *by H***E on 18 October 2024* Produto muito bom ### ⭐⭐⭐⭐⭐ Super compact, great performance *by A***D on 20 April 2026* This little pump does a great job, particularly for how small it is. It was the perfect choice for my small truck/camper system. The plastic construction is robust and feels to be well manufactured. Installation is very simple: attach 3/8" ID hose to barb connectors with hose clamps and connect the positive and negative wires to your 12V source via a switch or relay. Water pressure was very good when running directly at full flow, but when running with partially open valve (restricted flow), the pump's pressure switch causes rapid on/off cycles. I chose to couple the pump with a 0.75L accumulator to eliminate this chatter and reduce electrical/mechanical wear. Very happy with the overall performance of this water pump. ### ⭐⭐⭐⭐ Buena calidad vs precio *by A***S on 13 May 2026* Buena calidad vs precio ## Frequently Bought Together - SEAFLO 21-Series Water Pressure Diaphragm Pump - 12V DC, 1.2 GPM, 35 PSI with Adjustable Pressure Switch, Self-Priming, Quiet Operation for RV, Boat, and Off-Grid Applications - Water Pump Strainer, 3/8 Inch Hose Barb In-Line Strainer Twist-On Sprayer Filter for Water Pump 12V DC 80 PSI RV Camper Marine Boat Lawn - 3/8" ID x 10 Ft High Pressure Braided Clear PVC Vinyl Tubing Flexible Vinyl Tube, Heavy Duty Reinforced Vinyl Hose Tubing, BPA Free and Non Toxic --- ## 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.co.za/products/419820325-seaflo-12v-dc-1-2-gpm-35-psi-21-series](https://www.desertcart.co.za/products/419820325-seaflo-12v-dc-1-2-gpm-35-psi-21-series) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-07-15*