---
product_id: 10523910
title: "John Guest 3/8 Inch Imperial Single Check Valve, Push to Connect Plastic Plumbing Fitting, 3/8SCV-US"
brand: "john guest"
price: "Rp636135"
currency: IDR
in_stock: true
reviews_count: 11
category: "John Guest"
url: https://www.desertcart.id/products/10523910-john-guest-3-8-inch-imperial-single-check-valve-push
store_origin: ID
region: Indonesia
---

# Prevents reverse water flow flawlessly Push-to-connect tech for tool-free install FDA & NSF certified for safety & durability John Guest 3/8 Inch Imperial Single Check Valve, Push to Connect Plastic Plumbing Fitting, 3/8SCV-US

**Brand:** john guest
**Price:** Rp636135
**Availability:** ✅ In Stock

## Summary

> 🚀 Upgrade your flow game with leak-free, tool-free precision!

## Quick Answers

- **What is this?** John Guest 3/8 Inch Imperial Single Check Valve, Push to Connect Plastic Plumbing Fitting, 3/8SCV-US by john guest
- **How much does it cost?** Rp636135 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.id](https://www.desertcart.id/products/10523910-john-guest-3-8-inch-imperial-single-check-valve-push)

## Best For

- john guest enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Lightweight:** At just 0.8 ounces and 2 inches long, it fits discreetly into any setup without bulk.
- • **Universal Compatibility:** Seamlessly fits plastic and soft copper tubing for versatile plumbing solutions.
- • **Certified Safety Assurance:** Built with FDA-compliant materials and NSF 61 & 51 certifications for peace of mind.
- • **Chemical-Resistant Durability:** Crafted from robust white polypropylene to withstand harsh chemicals and daily wear.
- • **Effortless Push-Fit Installation:** Say goodbye to leaks and tools with John Guest’s innovative push-to-connect design.

## Overview

The John Guest 3/8 Inch Imperial Single Check Valve is a compact, durable plumbing fitting designed to prevent reverse water flow. Featuring push-to-connect technology with EPDM O-rings, it ensures quick, reliable, and leak-free connections compatible with plastic and soft copper tubing. Made from FDA-compliant polypropylene and certified by NSF 61 and 51, it guarantees safety and chemical resistance for applications like reverse osmosis, beverage dispensing, and aquatics.

## Description

Simplify your plumbing and home improvement projects with the John Guest Check Valve. This single check valve is manufactured from durable white polypropylene and equipped with EPDM o-rings that utilize John Guest's push-fit technology to make easy, reliable, leak-free connections. These valves have been developed to restrict the flow of liquids and other loose materials to one direction through a pipe or passageway quickly and easily. Push-to-connect fittings provide a simple, quick, reliable, and leak-free connection with no tools required. FDA-compliant material; NSF 61 and 51 certified

Review: Great, quiet backflow fitting - Used this to prevent backflow on a commercial-grade condensate pump. We have a steam humidifier and so we have to use a pump rated for 212 degree water. The backflow valve that came with the pump was nightmare - horrendous chatter when pumping, then god-awful hammer (and total lack of backflow prevention) on shutoff. This pump uses 3/8” copper refrigerant line for its output and pumps at a very high rate. This John Guest fitting has been inline for several (peaceful!!) months now. It is utterly silent, adding no turbulence while pumping and providing instant shutoff with no hammering or backflow. Installation is a dream and no leaks or other problems so far.
Review: Works - Works perfectly with no leakage.

## Features

- JOHN GUEST CHECK VALVE: This push-to-connect check valve allows you to prevent the reverse flow of water quickly and easily; suitable for reverse osmosis systems, ice makers, coffee and beverage dispensing equipment, hydroponics, and aquarium/aquatics
- COMPATIBILITY: The John Guest imperial single check valve is compatible with plastic or soft copper tubing
- DESIGN: This check valve is equipped with EPDM O-rings that utilize John Guest's push-fit technology to make easy, reliable, and leak-free connections
- DURABLE: This valve is made with durable white polypropylene that provides excellent protection against chemicals
- SAFETY: These plastic check valves are manufactured with FDA-compliant material and are NSF 61 and 51 certified

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B005XTY90A |
| Best Sellers Rank | #33,428 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #52 in Check Valves |
| Brand | John Guest |
| Brand Name | John Guest |
| Connector Type | Tube OD |
| Customer Reviews | 4.5 out of 5 stars 128 Reviews |
| Exterior Finish | Plastic |
| Global Trade Identification Number | 00665626002564 |
| Included Components | Check Valve |
| Inlet Connection Size | 0.38 Inches |
| Inlet Connection Type | Push |
| Item Dimensions | 2 x 0.75 x 0.75 inches |
| Item Type Name | Plastic Push Check Valve |
| Item dimensions L x W x H | 2 x 0.75 x 0.75 inches |
| Manufacturer | Cash Acme |
| Manufacturer Part Number | 3/8SCV |
| Material | Acetal |
| Material Type | Acetal |
| Model Number | 3/8SCV |
| Number of Pieces | 10 |
| Number of Ports | 2 |
| Outlet Connection Size | 0.38 Inches |
| Outlet Connection Type | Quick Connect |
| Set Name | 1 Plastic Push Check Valve |
| Size | 3/8 in. |
| Thread Type | NPT |
| UPC | 665626002564 665626175220 665626120312 |
| Unit Count | 1.0 Count |
| Valve Type | Check Valve |

## Product Details

- **Material:** Acetal
- **Brand:** John Guest
- **Item dimensions L x W x H:** 2 x 0.75 x 0.75 inches
- **Exterior Finish:** Plastic
- **Inlet Connection Size:** 0.38 Inches
- **Inlet Connection Type:** Push
- **Outlet Connection Type:** Quick Connect
- **Number of Ports:** 2
- **Outlet Connection Size:** 0.38 Inches
- **Global Trade Identification Number:** 00665626002564

## Images

![John Guest 3/8 Inch Imperial Single Check Valve, Push to Connect Plastic Plumbing Fitting, 3/8SCV-US - Image 1](https://m.media-amazon.com/images/I/41DWVzRq+WL.jpg)
![John Guest 3/8 Inch Imperial Single Check Valve, Push to Connect Plastic Plumbing Fitting, 3/8SCV-US - Image 2](https://m.media-amazon.com/images/I/41TCRS01WwL.jpg)
![John Guest 3/8 Inch Imperial Single Check Valve, Push to Connect Plastic Plumbing Fitting, 3/8SCV-US - Image 3](https://m.media-amazon.com/images/I/51B63QVSL7L.jpg)
![John Guest 3/8 Inch Imperial Single Check Valve, Push to Connect Plastic Plumbing Fitting, 3/8SCV-US - Image 4](https://m.media-amazon.com/images/I/513TGqnWTNL.jpg)
![John Guest 3/8 Inch Imperial Single Check Valve, Push to Connect Plastic Plumbing Fitting, 3/8SCV-US - Image 5](https://m.media-amazon.com/images/I/51tmXpfdZEL.jpg)

## Available Options

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

## Questions & Answers

**Q: Is there another check valve that will work better on a chlorine/water pump 3/8" line?  these develop a leak. possibly john guest can respond.**
A: Shark Bite carries a bronze NSF water checkvalove 3/8". Make sure you know you line sizes OD, ID as John Guest and Shark Bite don't match how they specify.

**Q: How many come in the package?**
A: Only one piece per pack

**Q: Is $13 a normal price for these?  seems expensive**
A: Yes, the manufacture had a price increase and you are only buying one.

**Q: Will this work to maintain the prime of a kitchen soap dispenser? (I had to use long 3/8 tube, down to container sitting on shelf)**
A: Hello,

We do not recommend the use of our check valves with kitchen soap as the soap will be too viscous.  If you have additional questions please feel free to contact our technical support department at 877-700-4242.

Best Regards,

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great, quiet backflow fitting
*by R***. on March 16, 2019*

Used this to prevent backflow on a commercial-grade condensate pump. We have a steam humidifier and so we have to use a pump rated for 212 degree water. The backflow valve that came with the pump was nightmare - horrendous chatter when pumping, then god-awful hammer (and total lack of backflow prevention) on shutoff. This pump uses 3/8” copper refrigerant line for its output and pumps at a very high rate. This John Guest fitting has been inline for several (peaceful!!) months now. It is utterly silent, adding no turbulence while pumping and providing instant shutoff with no hammering or backflow. Installation is a dream and no leaks or other problems so far.

### ⭐⭐⭐⭐⭐ Works
*by M***G on February 11, 2025*

Works perfectly with no leakage.

### ⭐⭐⭐⭐⭐ Overpriced but still worth it.
*by T***C on July 23, 2023*

this check valve is a difficult item to find right now, and I had to pay up for it. but the John guest brand works flawlessly and it's definitely not worth taking the risk having a flood in your house by using one of the Chinese cheap knock offs..

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*Product available on Desertcart Indonesia*
*Store origin: ID*
*Last updated: 2026-05-09*