---
product_id: 196999075
title: "John Guest 3/8 Inch OD x 3/8 Inch NPT Straight Adapter, Push to Connect Plastic Plumbing Fitting, PP011223WP"
brand: "john guest"
price: "$13.34"
currency: USD
in_stock: true
reviews_count: 11
category: "John Guest"
url: https://www.desertcart.us/products/196999075-john-guest-3-8-inch-od-x-3-8-inch
store_origin: US
region: United States of America
---

# FDA & NSF certified Push-to-connect tech Chemical-resistant PP John Guest 3/8 Inch OD x 3/8 Inch NPT Straight Adapter, Push to Connect Plastic Plumbing Fitting, PP011223WP

**Brand:** john guest
**Price:** $13.34
**Availability:** ✅ In Stock

## Summary

> 🚀 Upgrade your plumbing game with effortless, leak-free connections!

## Quick Answers

- **What is this?** John Guest 3/8 Inch OD x 3/8 Inch NPT Straight Adapter, Push to Connect Plastic Plumbing Fitting, PP011223WP by john guest
- **How much does it cost?** $13.34 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/196999075-john-guest-3-8-inch-od-x-3-8-inch)

## 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

- • **Durable & Safe:** Made from FDA-compliant polypropylene that resists chemicals and corrosion.
- • **Leak-Proof Reliability:** EPDM O-rings ensure a durable, watertight seal every time.
- • **Time-Saving Efficiency:** Cuts installation time by up to 40% compared to traditional fittings.
- • **Tool-Free Installation:** Snap, twist, done—no wrench needed for a flawless fit.
- • **Universal Compatibility:** Seamlessly connects 3/8" OD pipes to 3/8" NPT threads across plastic, copper & CPVC.

## Overview

The John Guest 3/8 Inch OD x 3/8 Inch NPT Straight Adapter is a push-to-connect plastic fitting designed for quick, tool-free installation. Featuring durable polypropylene construction and EPDM O-rings, it guarantees leak-proof, chemical-resistant connections compatible with plastic, copper, and CPVC pipes. Certified FDA and NSF compliant, this fitting reduces installation time by up to 40%, making it a must-have for professionals and DIYers seeking reliable, efficient plumbing solutions.

## Description

Product Description Simplify your plumbing and home improvement projects with the John Guest Male Connector. These easy-to-install male couplers are equipped with EPDM O-rings that utilize John Guest's push-fit technology to make easy, reliable, and leak-free connections. This FDA-compliant plumbing fitting is made with durable and lead-free plastics that provide resistance against chemicals. From the Manufacturer Push-fit plastic fitting for the connection of plastic, copper, and CPVC pipe. Designed, manufactured and assembled by John Guest Speedfit. Simply push the fitting fully onto the pipe and twist the plastic nut clockwise to lock in place. Should the need arise to demount the connection unlock the nut and push the collet towards the body of the fitting and pull the pipe to release. The fitting ensures an easier working environment in confined places, is approved for behind the wall installations, and removes the need for hot works on site. Installation can be reduced by around 40-Percent when compared to traditional fixing methods.

Review: Anyone With a Milwaukee 4 Gallon Sprayer Needs This - The Milwaukee 4-Gallon sprayer is a wonderful invention but a small design flaw with the final connector that seperates the fluid suction to the plastic tank is this plastic peice. Somehow milwuakee did not fully pass the R&D testing and this peice does indeed fail and leaks. The simple fix is a 1/4" tube that could have plugged into this and onto the recieving pump adapter and all leaks go away. The threads are simply not rated to spec on the milwuakee plastic molding. Your best to just dremmel it off and use this peice. $5 and your backpack sprayer will be leak free. Easy to install. Be sure to grab some 1/4" tubing as well. You only need half an inch but you will need to buy a spool of it for a few bucks.
Review: John Guest fittings take the pain out of plumbing - John Guest fittings work with PEX, CPVC, and copper tubing . The important word in that sentence is WORK , I'm a big fan of PEX because it is flexible, CPVC and copper are not, but properly installed JG fittings do a foolproof, leakproof ,job that anyone with a tape measure , proper cutting tool, and a DYS attitude can be proud of ,using any of the three materials. JG fittings have other big plus going for them, they are removable, and reusable , never corrode, are very cost effective, and come in a wide range of fittings, in every size. SO no plumber, no wrenches, no soldering, no taping, etc etc VS snip , push,click and done. PS desertcart sells PEX tubing, PEX cutters, CTS [copper tubing] cutters, sent to your door , every thing you need , Personally I'd rather have a root canal than spend hours in a BIG BOX store trying to find what I need , getting only 1/2 my list and all the aggravation !!!

## Features

- JOHN GUEST MALE CONNECTOR: The John Guest male connector is a push-to-connect fitting that is used to join a 3/8 in. (OD sized) pipe and an 3/8 in. NPT thread quickly and easily
- NO TOOLS REQUIRED: Push-to-connect fittings provide a simple, quick, reliable, and leak-free connection with no tools required
- DESIGN: This male NPT connector is equipped with EPDM O-rings that utilize John Guest's push-fit technology to make easy, reliable, and leak-free connections
- DURABLE: This male coupler is made with durable white polypropylene that can protect against chemicals
- SAFETY: These MNPT connectors are manufactured with FDA-compliant material and are NSF 61 and 51 certified

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B005S4LDJ0 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #15,798 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #727 in Pipe Fittings |
| Brand | John Guest |
| Color | White |
| Connector Type | Adapter |
| Customer Reviews | 4.6 4.6 out of 5 stars (164) |
| Date First Available | September 25, 2011 |
| Exterior Finish | White |
| Global Trade Identification Number | 00665626120107 |
| Included Components | 3/8 Inch OD x 3/8 Inch NPT Straight Adapter |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 0.32 ounces |
| Item dimensions L x W x H | 5 x 7 x 1 inches |
| Item model number | PP011223WP |
| Manufacturer | Reliance Worldwide Corporation |
| Material | Polypropylene |
| Measurement System | inch |
| Number of Pieces | 1 |
| Part Number | PP011223WP |
| Product Dimensions | 5 x 7 x 1 inches |
| Size | 3/8 in. OD x 3/8 in. NPT |
| Thread Type | NPT |
| UPC | 665626120107 |
| Usage | Amateur, Professional |

## Product Details

- **Brand:** John Guest
- **Color:** White
- **Connector Type:** Adapter
- **Exterior Finish:** White
- **Item Weight:** 0.02 Pounds
- **Item dimensions L x W x H:** 5 x 7 x 1 inches
- **Material:** Polypropylene
- **Number of Pieces:** 1
- **Size:** 3/8 in. OD x 3/8 in. NPT
- **Thread Type:** NPT

## Images

![John Guest 3/8 Inch OD x 3/8 Inch NPT Straight Adapter, Push to Connect Plastic Plumbing Fitting, PP011223WP - Image 1](https://m.media-amazon.com/images/I/31-uZmOquzL.jpg)
![John Guest 3/8 Inch OD x 3/8 Inch NPT Straight Adapter, Push to Connect Plastic Plumbing Fitting, PP011223WP - Image 2](https://m.media-amazon.com/images/I/316J46Fe0yL.jpg)
![John Guest 3/8 Inch OD x 3/8 Inch NPT Straight Adapter, Push to Connect Plastic Plumbing Fitting, PP011223WP - Image 3](https://m.media-amazon.com/images/I/31EZKVyNy1L.jpg)
![John Guest 3/8 Inch OD x 3/8 Inch NPT Straight Adapter, Push to Connect Plastic Plumbing Fitting, PP011223WP - Image 4](https://m.media-amazon.com/images/I/31IUx53tmlL.jpg)
![John Guest 3/8 Inch OD x 3/8 Inch NPT Straight Adapter, Push to Connect Plastic Plumbing Fitting, PP011223WP - Image 5](https://m.media-amazon.com/images/I/31M6s25LJaL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Anyone With a Milwaukee 4 Gallon Sprayer Needs This
*by J***I on November 25, 2025*

The Milwaukee 4-Gallon sprayer is a wonderful invention but a small design flaw with the final connector that seperates the fluid suction to the plastic tank is this plastic peice. Somehow milwuakee did not fully pass the R&D testing and this peice does indeed fail and leaks. The simple fix is a 1/4" tube that could have plugged into this and onto the recieving pump adapter and all leaks go away. The threads are simply not rated to spec on the milwuakee plastic molding. Your best to just dremmel it off and use this peice. $5 and your backpack sprayer will be leak free. Easy to install. Be sure to grab some 1/4" tubing as well. You only need half an inch but you will need to buy a spool of it for a few bucks.

### ⭐⭐⭐⭐⭐ John Guest fittings take the pain out of plumbing
*by F***O on October 17, 2024*

John Guest fittings work with PEX, CPVC, and copper tubing . The important word in that sentence is WORK , I'm a big fan of PEX because it is flexible, CPVC and copper are not, but properly installed JG fittings do a foolproof, leakproof ,job that anyone with a tape measure , proper cutting tool, and a DYS attitude can be proud of ,using any of the three materials. JG fittings have other big plus going for them, they are removable, and reusable , never corrode, are very cost effective, and come in a wide range of fittings, in every size. SO no plumber, no wrenches, no soldering, no taping, etc etc VS snip , push,click and done. PS Amazon sells PEX tubing, PEX cutters, CTS [copper tubing] cutters, sent to your door , every thing you need , Personally I'd rather have a root canal than spend hours in a BIG BOX store trying to find what I need , getting only 1/2 my list and all the aggravation !!!

### ⭐⭐⭐⭐⭐ Great!
*by M***Y on December 22, 2025*

Durable, sturdy, and easy to use. I’ve never seen one of these fittings leak, either.

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-16*