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  1. RV Water Pump
  2. PowerMax
  3. Diaphragm Pump
  4. 115V
  5. 3 gpm
  6. 45 psi
PowerMax RV Fresh Water Pump w/ Strainers, Fittings - 115 Volt - 3.2 Gallons Per Minute - 45 psi
PowerMax

PowerMax RV Fresh Water Pump w/ Strainers, Fittings - 115 Volt - 3.2 Gallons Per Minute - 45 psi

Part Number: PM27VR
In Stock
$144.69
Retail:$169.00
You Save: $24.31
RV Water Pump
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This self-priming, AC-powered water pump delivers steady flow for RV and marine systems. It clears air from the lines, reduces noise and cycling, and protects itself from overheating during extended or changing water demand. Great Prices for the best rv water pump from PowerMax. PowerMax RV Fresh Water Pump w/ Strainers, Fittings - 115 Volt - 3.2 Gallons Per Minute - 45 psi part number PM27VR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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PowerMax RV Water Pump - PM27VR

  • Diaphragm Pump
  • 115V
  • 3 gpm
  • 45 psi
  • PowerMax

This self-priming, AC-powered water pump delivers steady flow for RV and marine systems. It clears air from the lines, reduces noise and cycling, and protects itself from overheating during extended or changing water demand.


Highlights

  • Water Starts Flowing Without Extra Steps: Self-priming design clears air from the lines so faucets deliver water without manual priming.
  • Steady Water Pressure for Everyday Use: Delivers consistent flow for faucets, showers, and multiple outlets in RV, marine, or tiny home water systems.
  • Quiet Operation for Comfortable Living Spaces: Noise-dampening feet help reduce vibration and pump noise during operation.
  • Protects Itself From Overheating: Thermal protection helps prevent damage by automatically shutting the pump off if it gets too hot.
  • Smart-Powered Operation With Automatic Shutoff: Intermittent duty cycle turns the pump on and off as water demand changes.
  • Plug-In Power for Simple Setup: Runs on standard 115V AC power so you can connect it to an outlet without hardwiring.

Features to know about

Self-Priming That Clears Air Without Extra Steps

After winterizing or running your tank dry, air can get trapped in your RV plumbing. With a manual pump, clearing that air often means loosening fittings or pouring water directly into the pump. This self-priming pump clears air on its own so water reaches the faucet without manual priming.

Quiet Operation for Indoor Water Systems

RV pump has rubber feet to dampen vibrational noise.

Because this pump is designed for use in RVs, boats, and tiny homes, noise control matters. The noise-dampening design helps reduce vibration and sound during operation, making it better suited for living spaces where pumps are installed nearby.

What Happens If Water Demand Changes Quickly?

RV pump shown with human holding it for scale.

Opening and closing faucets creates rapid changes in water demand. This smart-powered pump responds automatically, cycling on when water is needed and shutting off once pressure is restored. Thermal protection adds a layer of safety by preventing overheating during extended use.


Quick Tips: If you have a mischievous camp cat you leave unsupervised, you might want to unplug the pump if you're going to be away from your RV for a while so they don't accidentally turn it on. If you have shaky faucets, unplugging the pump on travel days will keep it from turning on too.

Installation Notes Worth Knowing

The pump can be installed in varied spaces and orientations, and includes strainers and fittings to help simplify installation. The ports use straight pipe threads, which seal with washers or gaskets rather than tapered threads. Proper fitting placement helps prevent leaks and ensures reliable operation.

Specs

Performance:

  • Flow rate: 3.2 gallons per minute
  • Pressure setting: 45 psi
  • Dry prime capability: 6'

Electrical:

  • Voltage: 115V AC
  • Duty type: Intermittent duty

Ports & Construction:

  • Ports: 1/2"-14 NPSM male
  • Housing construction: Polypropylene
  • Diaphragm material: Santoprene

Dimensions & Weight:

  • Overall dimensions: 12-15/16" long x 10-5/16" wide x 8-1/8" tall
  • Weight: 6 lbs


PMWP-3G-115V Power Max Smart Powered Water Pump for Motorhome with Strainers and Fittings - 115V - 3.2 GPM - 45 psi

Installation Details PM27VR Installation instructionsAlternate Instructions PM27VR Installation instructions


California residents: click here


Video of PowerMax RV Fresh Water Pump w/ Strainers, Fittings - 115 Volt - 3.2 Gallons Per Minute - 45 psi
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Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Review of PowerMax RV Water Pump - Diaphragm Pump - PM27VR

Hi everyone. Steve here with etrailer. Today we're looking together at a PowerMax RV Fresh Water Pump. It has strainers, fittings, it's 115 volt with a 3.2 gallon per minute flow rate and 45 PSI pressure setting. So folks, this is a self priming and it's a start, or smart power, sorry, RV water pump. And like I said, you're gonna get the included strainer here and the different fittings you need.

And these just simply thread onto the pump where you need 'em to, depending on if it's in or out as far as the flow, you can check all that with the instructions and everything. And of course, you've got your rubber isolators here on the bottom. That's gonna help keep the vibration of the noise to a minimum. And then of course, you have your plug here. Again, 115 volts of AC intermittent power.

And this is great for faucets, showers, multiple outlets. It has a thermal protection inside of it. That's gonna prevent overheating and it adds a nice level of safety as well. And that intermediate duty cycle gives you that automatic shutoff. Again, keeping everything nice and safe.

It's a pretty simple installation. It's gonna fit into tight, small spaces with ease. And again, folks, if you're looking for a replacement, this is a great option for you. Let's go ahead and look at some quick dimensions here. I got roughly nine inches from end to end overall on a length, and a width, I'm gonna do the widest point here, which is these fittings here, roughly five and 5/8 inches wide at the widest point here.

And then as far as a height overall, roughly five inches tall from the top here. Again, folks, 3.2 gallons per minute. This is the PowerMax RV freshwater pump. I'm Steen with etrailer, reach out if you have any questions about this or the products and have a great day.

Customer Satisfaction Score:

Ratings & Reviews

4.4

5 reviews
Review sort icon
This self-priming, AC-powered water pump delivers steady flow for RV and marine systems. It clears air from the lines, reduces noise and cycling, and protects itself from overheating during extended or changing water demand.

by:



by:

Arrived on time - everything intact and as advertised - Have not installed yet .



by:

Received quickly. I am using in off grid cabin. Have yet to install.



by:



by:


5
5

See what our Experts say about this PowerMax RV Water Pump


Info for this part was:

Employee Steven C
Installed by:
Steven C
Employee Mary K
Updated by:
Mary K
Employee Sabrina W
Updated by:
Sabrina W
Employee Alex H
Written by:
Alex H
Employee Anthony G
Edited by:
Anthony G
Employee Ethan H
Video Edited:
Ethan H

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