---
product_id: 39031025
title: "PENTAIR SHURFLO 4238-121-E07 Blaster II Washdown Pump | 12V Marine Diaphragm Pump, 3.5 GPM 45 PSI, Self Priming for Boat Deck RV Fresh Saltwater Cleaning"
brand: "shurflo"
price: "¥61629"
currency: JPY
in_stock: true
reviews_count: 8
category: "Shurflo"
url: https://www.desertcart.jp/products/39031025-pentair-shurflo-4238-121-e07-blaster-ii-washdown-pump-12v
store_origin: JP
region: Japan
---

# 12V DC power source 3.5 GPM flow rate Self-priming for marine use PENTAIR SHURFLO 4238-121-E07 Blaster II Washdown Pump | 12V Marine Diaphragm Pump, 3.5 GPM 45 PSI, Self Priming for Boat Deck RV Fresh Saltwater Cleaning

**Brand:** shurflo
**Price:** ¥61629
**Availability:** ✅ In Stock

## Summary

> 🛥️ Clean smarter, not harder — the ultimate washdown pump for your boat or RV!

## Quick Answers

- **What is this?** PENTAIR SHURFLO 4238-121-E07 Blaster II Washdown Pump | 12V Marine Diaphragm Pump, 3.5 GPM 45 PSI, Self Priming for Boat Deck RV Fresh Saltwater Cleaning by shurflo
- **How much does it cost?** ¥61629 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/39031025-pentair-shurflo-4238-121-e07-blaster-ii-washdown-pump-12v)

## Best For

- shurflo enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Lightweight:** Easy installation with a sleek 9" x 4.9" x 4.1" footprint, perfect for tight spaces
- • **Marine-Grade Durability:** Built to resist corrosion and withstand harsh saltwater environments
- • **Powerful 12V DC Operation:** Reliable energy efficiency for on-the-go marine and RV use
- • **Self-Priming Diaphragm Design:** Effortless startup even with fresh or saltwater, no manual priming needed
- • **Robust 3.5 Gallons Per Minute Flow:** Delivers consistent, high-pressure washdown performance

## Overview

The PENTAIR SHURFLO 4238-121-E07 Blaster II is a 12V marine diaphragm pump delivering 3.5 GPM at 45 PSI. Designed for fresh and saltwater washdown, it features self-priming capability and corrosion-resistant materials, making it a reliable, compact solution for boat decks and RVs.

## Description

Buy PENTAIR SHURFLO 4238-121-E07 Blaster II Washdown Pump, 12V Marine Diaphragm Pump, 3.5 GPM 45 PSI, Self Priming for Boat Deck RV Fresh Saltwater Cleaning: Power Water Pumps - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Quality and fit - Excellent product and worked perfectly in our boat. Highly recommend and is of high quality.
Review: Works great - Perfect replacement. Salt water eats them up about every 2 to 3 years

## Features

- GREAT PRODUCT
- Le mer vous sourit
- GREAT PRODUCTS

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00U8YDA46 |
| Best Sellers Rank | #30,636 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #18 in Power Water Pumps |
| Brand | SHURFLO |
| Brand Name | SHURFLO |
| Color | Beige |
| Customer Reviews | 4.4 out of 5 stars 271 Reviews |
| Flow Rate | 35 Gallons Per Minute |
| Included Components | SHURFLO |
| Item Dimensions L x W x H | 9"L x 4.9"W x 4.1"H |
| Item Type Name | BLASTER II WD PUMP 12VDC 3.5GPM |
| Item Weight | 1 Pounds |
| Manufacturer | SHURFLO |
| Manufacturer Part Number | 4238-121-E07 |
| Manufacturer Warranty Description | LIMITED WARRANTY |
| Material | Plastic |
| Material Type | Plastic |
| Model Number | 4238-121-E07 |
| Power Source | DC |
| Product Dimensions | 9"L x 4.9"W x 4.1"H |
| Product Style | Diaphragm |
| Specific Uses For Product | General water transfer, Marine fresh or saltwater wash down |
| Style | Diaphragm |
| UPC | 752324012404 |
| Unit Count | 1.0 Count |
| Voltage | 12 Volts |

## Product Details

- **Brand:** SHURFLO
- **Color:** Beige
- **Item Weight:** 5.2 Pounds
- **Manufacturer:** Shurflo by Pentair
- **Material:** Plastic
- **Maximum Flow Rate:** 35 Gallons Per Minute
- **Power Source:** DC
- **Product Dimensions:** 9"L x 4.9"W x 4.1"H
- **Style:** Diaphragm
- **Voltage:** 12 Volts

## Images

![PENTAIR SHURFLO 4238-121-E07 Blaster II Washdown Pump | 12V Marine Diaphragm Pump, 3.5 GPM 45 PSI, Self Priming for Boat Deck RV Fresh Saltwater Cleaning - Image 1](https://m.media-amazon.com/images/I/51fZWYAXJgL.jpg)

## Questions & Answers

**Q: How do I do a warranty claim, shurflow says deal with seller, seller says deal with shurflow?**
A: Out of the box defects within 30 days go through the seller. After that, it has to be handled under the factory warranty.

**Q: Is this model# 4238-121-e07? the item photo shows 4238-153-e09. please confirm the correct model being sold. thanks.**
A: I received the 4238-121-e07 when I ordered.

**Q: does this come with fittings?**
A: Yes it does.

**Q: will this pump start and stop automatically by just using the nozzle.   and if so  what is the pressure switch set at?**
A: I just replaced the pump on my boat with this pump and the switch on the panel must be on for the pump to operate.  It will continuously operate the live well as long as the switch is on so would assume it is not pressure regulated

## Customer Reviews

### ⭐⭐⭐⭐⭐ Quality and fit
*by A***R on April 4, 2026*

Excellent product and worked perfectly in our boat. Highly recommend and is of high quality.

### ⭐⭐⭐⭐⭐ Works great
*by M***E on February 20, 2026*

Perfect replacement. Salt water eats them up about every 2 to 3 years

### ⭐⭐⭐⭐⭐ Shureflo Marine Pump
*by L***J on July 21, 2025*

Very easy to hook up and with all the components I needed. Quality built with highly recommend.

## Frequently Bought Together

- Shurflo by Pentair Blaster™ II Washdown Pump - 12 VDC, 3.5 GPM
- SHURFLO (255-313) 1/2" Twist-On Pipe Strainer
- SHURFLO 1434.1019 234-2926 1/2" FPT X 1/2" Barb Straight Swivel , Gray

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**Shop now:** [https://www.desertcart.jp/products/39031025-pentair-shurflo-4238-121-e07-blaster-ii-washdown-pump-12v](https://www.desertcart.jp/products/39031025-pentair-shurflo-4238-121-e07-blaster-ii-washdown-pump-12v)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-07-18*