--- product_id: 1962837 title: "SEAFLO 21 Series Water Pressure Diaphragm Pump - 12V DC, 1.2 GPM, 35 PSI, Adjustable Pressure Switch, Self-Priming, Quiet Operation, Durable Compact Design for RV, Boat, Off-Grid Use - 4-Year Warranty" brand: "seaflo" price: "288.11 DT" currency: TND in_stock: true category: "Seaflo" url: https://www.desertcart.tn/products/1962837-seaflo-21-series-water-pressure-diaphragm-pump-12v-dc-1 store_origin: TN region: Tunisia --- # 4.0A ultra-low power draw 1.2 GPM steady water flow Adjustable 35 PSI pressure switch SEAFLO 21 Series Water Pressure Diaphragm Pump - 12V DC, 1.2 GPM, 35 PSI, Adjustable Pressure Switch, Self-Priming, Quiet Operation, Durable Compact Design for RV, Boat, Off-Grid Use - 4-Year Warranty **Brand:** seaflo **Price:** 288.11 DT **Availability:** ✅ In Stock ## Summary > 💧 Pump up your off-grid lifestyle with whisper-quiet, energy-smart water flow! ## Quick Answers - **What is this?** SEAFLO 21 Series Water Pressure Diaphragm Pump - 12V DC, 1.2 GPM, 35 PSI, Adjustable Pressure Switch, Self-Priming, Quiet Operation, Durable Compact Design for RV, Boat, Off-Grid Use - 4-Year Warranty by seaflo - **How much does it cost?** 288.11 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/1962837-seaflo-21-series-water-pressure-diaphragm-pump-12v-dc-1) ## 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 - • **Quiet Comfort:** Runs as quietly as a room fan with vibration-dampening feet for peaceful living spaces. - • **Compact Powerhouse:** Small footprint fits tight RVs, boats, and van conversions without sacrificing performance. - • **On-Demand Water Flow:** Automatic pressure switch activates pump only when needed—no accumulator tank required. - • **Energy-Smart Efficiency:** Consumes just 4 amps—perfect for off-grid and battery-powered setups. - • **Built to Last & Certified Safe:** NSF/UL certified for potable water with a durable Santoprene diaphragm and 4-year warranty. ## Overview The SEAFLO 21 Series Water Pressure Diaphragm Pump delivers reliable 1.2 GPM flow at 35 PSI with ultra-low 4A power consumption. Designed for RVs, boats, and off-grid use, it features a self-priming, adjustable pressure switch and runs quietly on a compact, durable build. Certified safe for potable water and backed by a 4-year warranty, it’s the smart choice for efficient, hassle-free water delivery. ## Description desertcart.com: SEAFLO 21 Series Water Pressure Diaphragm Pump - 12V DC, 1.2 GPM, 35 PSI, Adjustable Pressure Switch, Self-Priming, Quiet Operation, Durable Compact Design for RV, Boat, Off-Grid Use - 4-Year Warranty : Automotive ## Features - [ SPECIFICATIONS ]: Model: SFDP1-012-035-21 | Voltage: 12V DC | Open Flow: 1.2 GPM (4.5 LPM) | Shut-Off Pressure: 35 PSI (2.4 BAR) | Current Draw: 4.0A | Self-Priming: Up to 4 ft (1.2 m) | Ports: 3/8" Hose Barb | Max Temperature: 140°F (60°C) | Leads: 18 AWG, 13" (33 cm) | Duty Cycle: Intermittent | Ignition Protected | Certifications: RoHS SGS ISO | Warranty: 4 Years - [ 4 YEAR WARRANTY ]: Backed by SEAFLO’s industry-leading 4-Year Limited Warranty, this compact diaphragm pump is built for long-term reliability in RV, marine, and off-grid freshwater systems. Designed for continuous real-world use, it provides dependable operation and peace of mind wherever consistent water delivery is essential for comfort and functionality. - [BUILT TO NSF UL Standards FOR RV POTABLE WATER ]: Built to NSF/ANSI/CAN 61 & 372 (Potable Water Safety), NSF 24 (RV Plumbing), and UL 778 (Motor-Operated Water Pumps) Safe for drinking water and compliant with RV and marine plumbing standards across North America - [ ULTRA LOW AMP DRAW EFFICIENCY ]: Consuming only 4.0 amps, this pump is ideal for battery-powered systems, solar installations, vans, and small boats where power conservation is critical. It delivers dependable water flow for a single sink or fixture without draining your battery bank, making it a superior choice for energy-conscious off-grid users. - [ SUPER QUIET OPERATION ]: Engineered for minimal noise, the pump runs no louder than a typical room fan. Rubber isolation feet reduce vibration transfer to surrounding surfaces, creating a comfortable environment in sleeping areas, cabins, and enclosed RV spaces where loud pumps can be disruptive. - [ COMPACT SINGLE FIXTURE DESIGN ]: Optimized for one sink or light-duty use, this small footprint pump fits tight installations where larger pumps cannot. Perfect for van conversions, small campers, boats, kiosks, or auxiliary water systems, it provides reliable performance without unnecessary size or weight. - [ ON DEMAND PRESSURE SWITCH ]: The built-in automatic pressure switch starts the pump when a faucet opens and stops it when closed, eliminating the need for an accumulator tank. This ensures convenient operation, reduced water waste, and consistent pressure for everyday use. - [ ADJUSTABLE PRESSURE SETTING ]: Fine-tune the pump’s shut-off pressure to match your plumbing system requirements. This flexibility helps protect delicate fixtures, reduce cycling, and optimize performance across a wide range of applications from marine galleys to portable water systems. - [ SELF PRIMING DRY RUN SAFE ]: Self-primes up to 4 feet for flexible installation above or below the water tank. The pump can run dry without damage during intermittent use, while built-in thermal protection prevents overheating, extending service life in demanding conditions. - [ DURABLE IGNITION PROTECTED BUILD ]: Constructed with a Santoprene diaphragm, corrosion-resistant materials, and ignition protection for marine environments, this pump meets or exceeds RoHS, SGS, and ISO standards. The industry-standard mounting pattern allows easy replacement of similar small pumps. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00DLKT4OO | | Best Sellers Rank | #2,188 in Automotive ( See Top 100 in Automotive ) #1 in RV Water Pumps & Accessories #1 in Boat Water Pressure Pumps | | Brand Name | SEAFLO | | Color | Black | | Customer Reviews | 4.4 4.4 out of 5 stars (1,856) | | Flow Rate | 1.2 gpm | | Global Trade Identification Number | 00637776645502, 00640674580349, 00787721093749, 00810039498149, 06410038780111 | | Included Components | 4-Year Warranty Card, Instructions, SEAFLO 21 Series Water Pressure Diaphragm Pump (SFDP1-012-035-21) | | Item Dimensions L x W x H | 6.65"L x 3.94"W x 2.44"H | | Item Weight | 1.3 pounds | | Manufacturer | SEAFLO | | Manufacturer Part Number | SFDP1-012-035-21 | | Material Type | Polypropylene | | Maximum Lifting Height | 4 feet | | Model Number | SFDP1-012-035-21 | | Number of Items | 1 | | Number of Packs | 1 | | Power Source | 12V DC (2-Pin Wire not Houseplug) | | Product Style | 1.2 GPM - 35 PSI | | Specific Uses For Product | Potable Water Pump | | UPC | 640674580349 787721093749 615200881986 637776645502 | | Voltage | 12 volts_of_direct_current | ## Product Details - **Brand:** SEAFLO - **Color:** Black - **Item Weight:** 1.3 pounds - **Material:** Polypropylene - **Maximum Flow Rate:** 1.2 gpm - **Maximum Lifting Height:** 4 feet - **Power Source:** 12V DC (2-Pin Wire not Houseplug) - **Product Dimensions:** 6.65"L x 3.94"W x 2.44"H - **Style:** 1.2 GPM - 35 PSI - **Voltage:** 12 volts_of_direct_current ## Images ![SEAFLO 21 Series Water Pressure Diaphragm Pump - 12V DC, 1.2 GPM, 35 PSI, Adjustable Pressure Switch, Self-Priming, Quiet Operation, Durable Compact Design for RV, Boat, Off-Grid Use - 4-Year Warranty - Image 1](https://m.media-amazon.com/images/I/614G+HCBm9L.jpg) ![SEAFLO 21 Series Water Pressure Diaphragm Pump - 12V DC, 1.2 GPM, 35 PSI, Adjustable Pressure Switch, Self-Priming, Quiet Operation, Durable Compact Design for RV, Boat, Off-Grid Use - 4-Year Warranty - Image 2](https://m.media-amazon.com/images/I/71UnV-NNfPL.jpg) ![SEAFLO 21 Series Water Pressure Diaphragm Pump - 12V DC, 1.2 GPM, 35 PSI, Adjustable Pressure Switch, Self-Priming, Quiet Operation, Durable Compact Design for RV, Boat, Off-Grid Use - 4-Year Warranty - Image 3](https://m.media-amazon.com/images/I/61MzEseI9CL.jpg) ![SEAFLO 21 Series Water Pressure Diaphragm Pump - 12V DC, 1.2 GPM, 35 PSI, Adjustable Pressure Switch, Self-Priming, Quiet Operation, Durable Compact Design for RV, Boat, Off-Grid Use - 4-Year Warranty - Image 4](https://m.media-amazon.com/images/I/61bCLlDAikL.jpg) ![SEAFLO 21 Series Water Pressure Diaphragm Pump - 12V DC, 1.2 GPM, 35 PSI, Adjustable Pressure Switch, Self-Priming, Quiet Operation, Durable Compact Design for RV, Boat, Off-Grid Use - 4-Year Warranty - Image 5](https://m.media-amazon.com/images/I/91VfzPIIYiL.jpg) ## Available Options This product comes in different **Style** options. ## 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! ## 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? - 🛒 **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/1962837-seaflo-21-series-water-pressure-diaphragm-pump-12v-dc-1](https://www.desertcart.tn/products/1962837-seaflo-21-series-water-pressure-diaphragm-pump-12v-dc-1) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-13*