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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
✅ In stock
F
Grade
Analysis Confidence
100%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Sep 28, 2026 12:36 AM · Prices & availability subject to change
Is This a Good Price on Amazon?
💤 Not a Deal- 💤Verdict: Not a Deal. Price is at or above historical norms. Best to wait for a sale.
- 💰The current price is slightly above the going rate for this product — worth watching for a drop.
- 🏷️The retail sticker price has been slashed by 53% — a steep markdown from the official listing.
- 📉It has been quite a while since a more competitive price was available, lending today's offer solid comparative value.
- ➡️Pricing has held fairly steady, with no strong push in either direction.
How We Scored This Deal
Price Competitiveness
0/28
Recent Value
0/22
Market Standing
0/20
Deal Strength
0/20
Momentum
4/10
📝 Product Overview
🏪 Sold by
SEAFLO Direct
📦 Fulfillment
Fulfilled by Amazon
🚚 Shipping
Free Shipping
Product Details
✓[ 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.
⚙️ Specifications
Brand
SEAFLO
Color
Black
Material
Polypropylene
Style
1.2 GPM - 35 PSI
Product Dimensions
6.65"L x 3.94"W x 2.44"H
Power Source
12V DC (2-Pin Wire not Houseplug)
Item Weight
1.3 pounds
Maximum Flow Rate
1.2 gpm
Maximum Lifting Height
4 feet
Voltage
12 volts_of_direct_current
Global Trade Identification Number
00637776645502, 00640674580349, 00787721093749, 00810039498149, 06410038780111
