---
product_id: 500084473
title: "RV Water Pumps Pressure Pump 115V AC with Pressure Switch, Self-priming Water Pump 4.0GPM 45PSI, Fresh Water Pump for RV Kitchen Barthroom Marine Yacht Garden Diaphragm Pump"
brand: "wassermann"
price: "¥36032"
currency: JPY
in_stock: true
reviews_count: 8
url: https://www.desertcart.jp/products/500084473-rv-water-pumps-pressure-pump-115v-ac-with-pressure-switch
store_origin: JP
region: Japan
---

# 115V AC power for instant plug & play 4.0 GPM strong water flow Automatic pressure switch for hands-free use RV Water Pumps Pressure Pump 115V AC with Pressure Switch, Self-priming Water Pump 4.0GPM 45PSI, Fresh Water Pump for RV Kitchen Barthroom Marine Yacht Garden Diaphragm Pump

**Brand:** wassermann
**Price:** ¥36032
**Availability:** ✅ In Stock

## Summary

> 🚿 Elevate your water game with effortless pressure and flow!

## Quick Answers

- **What is this?** RV Water Pumps Pressure Pump 115V AC with Pressure Switch, Self-priming Water Pump 4.0GPM 45PSI, Fresh Water Pump for RV Kitchen Barthroom Marine Yacht Garden Diaphragm Pump by wassermann
- **How much does it cost?** ¥36032 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/500084473-rv-water-pumps-pressure-pump-115v-ac-with-pressure-switch)

## Best For

- wassermann enthusiasts

## Why This Product

- Trusted wassermann brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Plug & Play Power:** Simply connect to any standard 115V outlet—no fuss, just flow.
- • **Versatile & Durable:** Built tough for RVs, boats, gardens, and more—your all-in-one water solution.
- • **Smart Auto Operation:** Pressure switch activates pump only when needed—save energy and avoid noise.
- • **Consistent High Pressure:** Delivers a reliable 45 PSI for steady water supply wherever you need it.
- • **Complete Installation Kit:** Includes all essential adapters and a debris filter for seamless setup.

## Overview

The WASSERMANN RV Water Pump is a robust 115V AC-powered diaphragm pump delivering up to 4 gallons per minute at 45 PSI. Designed for RVs, boats, and home use, it features a fully automatic pressure switch for hands-free operation and comes with a complete installation kit including hose adapters and a debris filter. Compact and durable, it ensures reliable fresh water supply for kitchens, bathrooms, gardens, and marine applications.

## Description

WASSERMANN RV Water Pumps Pressure Pump 115V AC with Pressure Switch, Self-priming Water Pump 4.0GPM 45PSI, Fresh Water Pump for RV Kitchen Barthroom Marine Yacht Garden Diaphragm Pump

## Features

- 𝗖𝗢𝗠𝗣𝗟𝗘𝗧𝗘 𝗞𝗜𝗧 𝗜𝗡𝗖𝗟𝗨𝗗𝗘𝗦 𝗘𝗩𝗘𝗥𝗬𝗧𝗛𝗜𝗡𝗚 𝗬𝗢𝗨 𝗡𝗘𝗘𝗗: (1)RV Pump, (2)1/2" Barbed Hose Adaptors, (1)1/2" Male Thread Hose Adptor, (1)Filter Out Debris, (1)User Manual
- 𝗣𝗢𝗪𝗘𝗥𝗙𝗨𝗟 & 𝗘𝗙𝗙𝗜𝗖𝗜𝗘𝗡𝗧 𝗣𝗘𝗥𝗙𝗢𝗥𝗠𝗔𝗡𝗖𝗘: Delivers a strong water flow of up to 4 gallons per minute (GPM) with a consistent 45 PSI pressure setting for reliable use in your RV or camper.
- 𝗘𝗔𝗦𝗧 𝗧𝗢 𝗨𝗦𝗘:The Electric Water Pump is 115 Volt, AC Power, Can Simply Plug into Any Standard Wall Socket in The House, a Great Water Pressure Booster Pump for Home.
- 𝗙𝗨𝗟𝗟𝗬 𝗔𝗨𝗧𝗢𝗠𝗔𝗧𝗜𝗖 𝗢𝗣𝗘𝗥𝗔𝗧𝗜𝗢𝗡 𝗪𝗜𝗧𝗛 𝗣𝗥𝗘𝗦𝗦𝗨𝗥𝗘 𝗦𝗪𝗜𝗧𝗖𝗛:This RV Water Pump Works with a Pressure switch, the pump starts automatically when you turn on the tap and shuts off when you close it, providing a hassle-free, hands-off water system.
- 𝗗𝗨𝗥𝗔𝗕𝗟𝗘 & 𝗥𝗘𝗟𝗜𝗔𝗕𝗟𝗘 𝗙𝗢𝗥 𝗗𝗘𝗠𝗔𝗡𝗗𝗜𝗡𝗚 𝗨𝗦𝗘: It is an Ideal 115V Pressure Pump for RV, Camper, Boat, Irrigation, Sprinkler, Faucet, car washing, yacht, garden, kitchen bathroom and long-distance pumping in the courtyard.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | wassermann |
| Color | Multi-color |
| Material | Plastic |
| Style | 3WDP4-45-115V |
| Product Dimensions | 8.78"L x 5.12"W x 4.86"H |
| Power Source | AC |
| Item Weight | 6.7 Pounds |
| Maximum Flow Rate | 4 Gallons Per Minute |
| Maximum Lifting Height | 98 Feet |
| Voltage | 115 Volts |
| Manufacturer | WASSERMANN |
| Specific Uses For Product | Kitchen, Marine, RV, Yacht, camping |
| Part Number | 3WDP4-45-115V |
| Item Weight | 6.7 pounds |
| Item model number | 3WDP4-45-115V |
| Item Package Quantity | 1 |
| Included Components | RV PUMP |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | 1 year |

## Product Details

- **Brand:** wassermann
- **Color:** Multi-color
- **Material:** Plastic
- **Style:** 3WDP4-45-115V
- **Product Dimensions:** 8.78"L x 5.12"W x 4.86"H
- **Power Source:** AC
- **Item Weight:** 6.7 Pounds
- **Maximum Flow Rate:** 4 Gallons Per Minute
- **Maximum Lifting Height:** 98 Feet
- **Voltage:** 115 Volts

## Images

![RV Water Pumps Pressure Pump 115V AC with Pressure Switch, Self-priming Water Pump 4.0GPM 45PSI, Fresh Water Pump for RV Kitchen Barthroom Marine Yacht Garden Diaphragm Pump - Image 1](https://m.media-amazon.com/images/I/71zsfASiibL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: can this pump be used with a pressure washer? I have a 275 gallon water tank and need water pumped to the pressure washer.**
A: Anything less then I believe its 55 pounds of pressure going to the pump and it turns on automatically. So if water comes out of your tank at a lower pressure the pump should sense it and turn on and pump water out at 55 lbs.

**Q: Can this pump have bleach run through it without corroding?**
A: Limit it to the 2-3ppm chlorine concentration of a city water supply.

**Q: Will this work in a home that just has low pressure on top of the hill of the city to supply a house? Showers, sinks, toilets...**
A: No

**Q: What type of male threads are on the pump's outlets IT IS NOT NPT!!!  are they GHT (Garden hose threads )? how to adapt them to USA NPT?**
A: Comes with adapters and I hooked up to pex plumbing. I used pex pipe and crimps. You can buy adapters for pex or anything you need on Amazon just search for it.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great little pump
*by D***M on August 30, 2025*

Excellent pump! Installed it in my RV and it works flawlessly—steady water pressure at 45 PSI with no pulsing or noise issues. Self-priming feature makes setup simple, and it handles sinks, shower, and even outdoor use with ease. Solid build quality and very reliable. Great for RVs, boats, or camping setups—highly recommend!

### ⭐⭐⭐⭐⭐ Fits right
*by E***N on September 18, 2025*

This pump is awesome. Uses less amps than our 7.5amp pump. Same company but its 4 to 7amps depending on the use. Fit right in, came with the right fittings for about any fitting. Its quiet and does what is needed. Great price, fast delivery thanks a bunch seller

### ⭐⭐⭐⭐⭐ Not just for RV use
*by A***R on September 26, 2025*

I used this pump to build a portable pump box to use with my water trailer to feed water supply to a sink and toilet in my lake bathhouse during the summer. Works great, powered by a 12 vt deep cell battery. Was just what I needed.

## Frequently Bought Together

- WASSERMANN Water Pressure Diaphragm Pump 115V AC 4.0 GPM 45PSI,Self-priming Booster Pump with Power Plug, for Kitchen Bathroom RV Marine, Yacht Garden
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**Shop now:** [https://www.desertcart.jp/products/500084473-rv-water-pumps-pressure-pump-115v-ac-with-pressure-switch](https://www.desertcart.jp/products/500084473-rv-water-pumps-pressure-pump-115v-ac-with-pressure-switch)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-18*