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SEAFLO

SEAFLO 33-Series Water Pressure Pump - 115V AC, 3.3 GPM, 45 PSI, Self Priming, Smart Pressure Switch, UL & CSA Certified, for RV, Caravan, Off-Grid, Marine, and Industrial Use

    • Based on 3,282 reviews
Condition: New
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Availability: Only 2 left in stock, order soon!
Fulfilled by Amazon
Arrives Apr 7 – Apr 10
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Features

  • [ SPECIFICATIONS ]: Model Number: SFDPA1-033-045-33 Voltage: 115V Open Flow: 3.3 GPM (12.5 LPM) Shut-Off Pressure: 45 PSI (3.1 BAR) Max Draw: 1.0A Priming Capabilities: 6 feet (1.8 m) suction lift Material: Santoprene (Diaphragm) / EPDM (Valves) Ports: 1/2"-14 MNPT Max Recommended Temperature: 140F (60C) Warranty: 4-Year Limited Warranty UL 778 & CSA 22.2 Certified
  • [ INCLUDED COMPONENTS ]: SEAFLO 33-Series Diaphragm Pump Installation Instructions (2) 1/2" Barbed Hose Adaptors 50 Mesh Inlet Strainer Mounting Hardware Wall Plug for Easy Setup
  • [ HIGH-PERFORMANCE THREE-CHAMBER DESIGN ]: The SEAFLO 33-Series features a robust three-chamber diaphragm capable of delivering a reliable flow rate of 3.3 GPM. This design supports up to 3-4 fixtures simultaneously, making it perfect for freshwater or saltwater applications in marine, RV, and household settings.
  • [ SELF-PRIMING AND RUN DRY CAPABILITIES ]: Designed for versatile installation, this pump offers a 6-foot self-priming lift, allowing it to be mounted above the water source without performance loss. It can also run dry without damage, ensuring durable operation even during low-water situations.
  • [ AUTOMATIC ON-DEMAND OPERATION ]: The pump's built-in automatic pressure switch provides on-demand operation, activating when a faucet is opened and shutting off when closed. This feature saves energy and optimizes water usage, enhancing the efficiency of your water system.
  • [ DURABLE & CORROSION-RESISTANT MATERIALS ]: Built with high-quality Santoprene and EPDM, this pump offers excellent resistance to abrasion and corrosion, making it ideal for both freshwater and saltwater environments. The durable materials ensure long-lasting reliability under harsh conditions.
  • [ QUIET OPERATION WITH ANTI-VIBRATION DESIGN ]: The SEAFLO 33-Series pump is engineered for quiet operation, with noise levels comparable to an indoor electric fan. The semi-rigid rubber mounting base reduces vibration, minimizing noise and ensuring peaceful usage in confined spaces like RVs, boats, and cabins.
  • [ VERSATILE APPLICATIONS FOR MARINE, RV, AND HOME USE ]: Ideal for multiple applications, this pump supports washdown, potable water, and household water transfer needs. Its high flow rate and reliable build make it a versatile solution for various settings, from camping to marine adventures.
  • [ EASY PLUG-IN INSTALLATION WITH WALL OUTLET ADAPTER ]: For added convenience, this pump includes a plug for a standard wall outlet, simplifying setup and making it easy to integrate into any water system, whether on the road, at home, or out on the water.

Brand: SEAFLO


Color: Black, White


Material: Metal


Style: Diaphragm Pump


Product Dimensions: 7.98"L x 5.11"W x 4.84"H


Power Source: ac


Item Weight: 4.2 Pounds


Maximum Flow Rate: 3.3 Gallons Per Minute


Maximum Lifting Height: 6 Feet


Voltage: 115 Volts


Brand: ‎SEAFLO


Color: ‎Black, White


Material: ‎Metal


Style: ‎Diaphragm Pump


Product Dimensions: ‎7.98"L x 5.11"W x 4.84"H


Power Source: ‎ac


Item Weight: ‎4.2 Pounds


Maximum Flow Rate: ‎3.3 Gallons Per Minute


Maximum Lifting Height: ‎6 Feet


Voltage: ‎115 Volts


Manufacturer: ‎SEAFLO


UPC: ‎647336948127


Part Number: ‎SFDPA1-033-045-33


Item Weight: ‎4.2 pounds


Item model number: ‎SFDPA1-033-045-33


Is Discontinued By Manufacturer: ‎No


Size: ‎45 PSI


Amperage Capacity: ‎1.2 Amps


Item Package Quantity: ‎1


Special Features: ‎Pressure switch


Included Components: ‎51S01 Filter, 51F01 Fitting


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: October 25, 2017


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Apr 7 – Apr 10

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Using as a camp shower pump
I am not a plumber, but consider myself pretty handy. This is the 4th and final pump I got from Amazon as part of the camp shower build process (NOT defective, just trying different options). Here's what I learned, hopefully this will be helpful to others who are building outdoor camping showers. 1. The pumps plastic male fittings don't match box store brass fittings. They likely won't leak in plastic-on-plastic installations, but if you're screwing a metal female fitting onto the pump's plastic male fittings, they won't fit and will leak, even though technically both will say 1/2". I used flexible 1/2" hose and some hose clamps to make it work and avoid brass to plastic fittings. 2. This is an on-demand pump. You plug it in, and it will sense if water is being requested anywhere in your system and start pumping. Plan to build a system that's as leak-free as possible or this pump will continue to cycle periodically. I built a prototype garden hose system, which was full of leaks, and this pump kicked on for a second every 15-20 seconds because it assumed I was requesting water (even though it was just leaks). If your system is leak-free, the pump will stay off and silent until you open a valve somewhere in the system. 3. I bit the bullet and bought the $70 PEX crimp tool, which greatly simplified building my shower system. You'll need the crimp tool, some metal ring clamps, and a few baggies of elbows, tees, splicers, and shut-off valves. I was able to build my system with zero leaks. If you're doing this, get white PEX 1/2" line, it can be used for hot/cold/any water, in other words, blue cold line, red hot line, and white neutral line are all identical and differ only cosmetically. Don't think you need to buy red line to run hot water, there's nothing inherently special about color lines - they are all the same, and the only reason they are colored is to tell them apart. 4. The pump is not silent and will vibrate, which means you'll need to attach it to some kind of a solid substrate very firmly. Mine is outside and the noise is not a problem, but if you're doing an RV/interior build, you'll definitely hear it kick on and work, especially if it's bolted to a hollow surface, like under the stairs. Find a way to bolt it to a cinder block or an anvil to dampen the vibration. 5. My system includes a shower and a sink for washing hands (same line, split via a T connector), and this pump is pretty amazing at supplying strong pressure across 10-15 yards through 1/2" PEX lines. You'll be able to take on-demand showers with serious pressure. My wife is still freaking out about the awesomeness of taking pressurized showers in the middle of nowhere. Apparently, gravity/solar showers are huge bummers with ladies who wish to wash their hair, who knew. Overall, if you also grab some flexible reinforced tubing with clamps to bypass brass-to-plastic size fitting size issue, you'll be able to build whatever you need. Strongly recommend. ... show more
Reviewed in the United States on July 17, 2019 by M. Y
    • Works well for RV pump replacement
RV water pump in our fifth wheel went out so I purchased this to replace. Was able to plug into outlet in wetbay and have been using it since purchased in November of 2023. We full time so this pump is used daily to pump for showers, RV washer, dishes etc. Pump is still working well. Have noticed a pulsing of the pump that is about 30 seconds intervals; however, that may be due to a small leak we have elsewhere in the fifth wheel that we have been unable to locate. All in all this pump has done it's job well for the past 15 months we have been using it daily. ... show more
Reviewed in the United States on February 17, 2025 by Daniel
    • This turned out to be the missing link in my capability to use my rain barrels to irrigate my garden
I didn't have much head pressure from my rain barrels, even with them elevated way off the ground and even if they were full. It was only enough to run about 20 feet of soaker hose, or let it slowly run out the end of the hose. This pump has been a game changer. I can run a full 50 foot soaker hose, or run a hand held sprayer basically just like it was the outside spigot. I can tell when the water level reaches the outlet in the barrel because the volume of water will suddenly drop by about half. I simply stop spraying at that point, and there is enough water supply to build up pressure and let the pump shut off. It claims letting it run dry won't damage the pump, but I don't want to test it repeatedly. This gives enough warning that my pump won't run without full water supply for more than a few seconds at a time. The built in strainer works like a charm. Luckily, the water is staying pretty clean in the barrels, so the strainer doesn't have to work too hard for me. I will have to clean it out soon though. ... show more
Reviewed in the United States on July 10, 2024 by b
    • For summer cabin use this works great!
Our previous pump that was a different brand and approx. 23 yrs old developed a leak so had to get this one in its place. Was happy this one had a plug in cord but it was too short and had to use an extension cord. Please make these with 6 ft cord! Hoping it would be quieter than my old but only slightly. We've used for 4 weeks (broken up in 4 uses of one week each) and it works great! Was happy with the purchase. Only gave 4 stars because of cord and noise, sorry... ... show more
Reviewed in the United States on October 8, 2024 by Cynthia L. Toepfer

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