---
product_id: 4930563
title: "John Guest Speedfit 3/8 Inch x 3/8 Inch x 1/4 Inch OD Reducing Tee, Push to Connect Plastic Plumbing Fitting, PP30121208WP"
brand: "john guest"
price: "49.89 DT"
currency: TND
in_stock: true
reviews_count: 13
category: "John Guest"
url: https://www.desertcart.tn/products/4930563-john-guest-speedfit-3-8-inch-x-3-8-inch
store_origin: TN
region: Tunisia
---

# Push-to-connect tech for tool-free install FDA & NSF certified safe polypropylene 150 PSI pressure rating for leak-proof durability John Guest Speedfit 3/8 Inch x 3/8 Inch x 1/4 Inch OD Reducing Tee, Push to Connect Plastic Plumbing Fitting, PP30121208WP

**Brand:** john guest
**Price:** 49.89 DT
**Availability:** ✅ In Stock

## Summary

> 🚀 Upgrade your plumbing game with leak-free speed and pro-grade durability!

## Quick Answers

- **What is this?** John Guest Speedfit 3/8 Inch x 3/8 Inch x 1/4 Inch OD Reducing Tee, Push to Connect Plastic Plumbing Fitting, PP30121208WP by john guest
- **How much does it cost?** 49.89 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/4930563-john-guest-speedfit-3-8-inch-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

- • **Long-Term Reliability:** Backed by a 25-year warranty, designed to keep your plumbing flawless for decades.
- • **Certified Safe Materials:** Made from FDA-compliant, NSF 61 & 51 certified polypropylene for peace of mind.
- • **Built to Withstand Pressure:** Handles up to 150 PSI at 70°F, ensuring a leak-free, reliable plumbing system.
- • **Effortless Push-Fit Installation:** Connect plastic or copper pipes in seconds—no tools, no hassle.
- • **Space-Saving Behind-the-Wall Use:** Approved for permanent, concealed installations—perfect for sleek, modern builds.

## Overview

The John Guest Speedfit 3/8" x 3/8" x 1/4" Reducing Tee is a high-performance push-to-connect plumbing fitting made from durable, FDA-compliant polypropylene. Featuring EPDM O-rings and John Guest’s patented push-fit technology, it delivers quick, tool-free, and leak-proof connections for plastic or copper pipes. Rated for 150 PSI at 70°F and certified to NSF 61 & 51 standards, this fitting is approved for behind-the-wall installations and backed by a 25-year warranty, making it a trusted choice for professional and DIY plumbing projects.

## Description

Product Description Simplify your plumbing and home improvement projects with the John Guest Tee Connector. This push-fit reducing tee adapter 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 adapters have been designed to connect plastic or copper pipe and are approved for behind-the-wall applications as a permanent leak-free connection. 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 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: Quality, easy to use, and works! 👍 - John Guest fittings have a lot of positive reviews and customers said they are good quality. So far I have no reason to say they are not quality. Every John Guest fittings I have used so far has been leak free and just works. I do recommend these fittings over other questionable brands. John Guest Speedfit 1/4 Inch... https://www.desertcart.com/dp/B005S4NYI8?ref=ppx_pop_mob_ap_share JOHN GUEST 1/4" One Way Check... https://www.desertcart.com/dp/B00AELC3MI?ref=ppx_pop_mob_ap_share AO Smith Under Sink Water Filter... https://www.desertcart.com/dp/B07NJ4P99G?ref=ppx_pop_mob_ap_share AO Smith filter was purchased after I read many positive reviews. I've been using it for about a month and so far it has been great with no leaks. I am looking forward to the savings I'll have because of the life and cost of these filters. Straight Stop Valve, SUNGATOR... https://www.desertcart.com/dp/B0CLY7K4LK?ref=ppx_pop_mob_ap_share Valve works great! 1 day after I received it I had a leak at a old tap made in my copper pipe mostly because I touched it after I added my water filter and I believe the seals inside were very old. So I cut the horrible mess of plumbing and added this valve inline and am happy to say no leaks and hopefully my copper pipes will be better with this setup and have a long leak free future. J John Guest 1/4 Inch x 25 Feet... https://www.desertcart.com/dp/B00N4O434I?ref=ppx_pop_mob_ap_share The John Guest brand has a lot of positive reviews and customers said they are good quality. So far I have no reason to say they are not quality. This tubing looks nice and appears to be of quality material and works well for my needs for my refrigerator supply line. SUNGATOR End Cap, 1/2-Inch Push... https://www.desertcart.com/dp/B082KXR42G?ref=ppx_pop_mob_ap_share I have confidence with these caps from my experience with the Sungator Straight Stop Valve. I purchased these in case of a emergency and if I need to temporarily cap a line before I can do a repair.
Review: Simple fix - Hard to find locally

## Features

- JOHN GUEST TEE CONNECTOR: This reducing tee is designed for the connection of plastic or copper pipe and is approved for behind-the-wall applications as a permanent leak-free connection
- DESIGN: This push-to-connect fitting is equipped with EPDM O-rings that utilize John Guest's push-fit technology to make easy, reliable, and leak-free connections
- DURABLE: This tee connector is made with durable white polypropylene that provides excellent protection against chemicals
- SPECS: These union connectors can withstand a pressure of 150 PSI at 70 degrees F and 60 PSI at 140 degrees F
- SAFETY: These plumbing fittings are manufactured with FDA-compliant material and are NSF 61 and 51 certified

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B005S4KVZC |
| Best Sellers Rank | #10,481 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #369 in Pipe Fittings |
| Brand | John Guest |
| Brand Name | John Guest |
| Color | White |
| Connector Type | connector_type |
| Customer Reviews | 4.7 out of 5 stars 580 Reviews |
| Exterior Finish | White |
| Global Trade Identification Number | 00665626120138 |
| Included Components | Union Tee Connector |
| Item Dimensions | 5 x 7 x 1 inches |
| Item Type Name | Plastic Push Tee |
| Item Weight | 0.03 Pounds |
| Item dimensions L x W x H | 5 x 7 x 1 inches |
| Manufacturer | Reliance Worldwide Corporation |
| Manufacturer Part Number | PP30121208WP |
| Manufacturer Warranty Description | 25 Years |
| Material | Plastic |
| Material Type | Plastic |
| Model Number | PP30121208WP |
| Number of Pieces | 1 |
| Size | 3/8 in. x 3/8 in. x 1/4 in. (Pack of 1) |
| Thread Size | 0.375 inch |
| Thread Type | NPT |
| UPC | 665626120138 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** John Guest
- **Color:** White
- **Connector Type:** Tee
- **Exterior Finish:** White
- **Item Weight:** 0.03 Pounds
- **Item dimensions L x W x H:** 5 x 7 x 1 inches
- **Material:** Plastic
- **Size:** 3/8 in. x 3/8 in. x 1/4 in. (Pack of 1)
- **Thread Size:** 0.375 inch
- **Thread Type:** NPT

## Images

![John Guest Speedfit 3/8 Inch x 3/8 Inch x 1/4 Inch OD Reducing Tee, Push to Connect Plastic Plumbing Fitting, PP30121208WP - Image 1](https://m.media-amazon.com/images/I/41fGQiGTyTL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Quality, easy to use, and works! 👍
*by J***N on July 18, 2025*

John Guest fittings have a lot of positive reviews and customers said they are good quality. So far I have no reason to say they are not quality. Every John Guest fittings I have used so far has been leak free and just works. I do recommend these fittings over other questionable brands. John Guest Speedfit 1/4 Inch... https://www.amazon.com/dp/B005S4NYI8?ref=ppx_pop_mob_ap_share JOHN GUEST 1/4" One Way Check... https://www.amazon.com/dp/B00AELC3MI?ref=ppx_pop_mob_ap_share AO Smith Under Sink Water Filter... https://www.amazon.com/dp/B07NJ4P99G?ref=ppx_pop_mob_ap_share AO Smith filter was purchased after I read many positive reviews. I've been using it for about a month and so far it has been great with no leaks. I am looking forward to the savings I'll have because of the life and cost of these filters. Straight Stop Valve, SUNGATOR... https://www.amazon.com/dp/B0CLY7K4LK?ref=ppx_pop_mob_ap_share Valve works great! 1 day after I received it I had a leak at a old tap made in my copper pipe mostly because I touched it after I added my water filter and I believe the seals inside were very old. So I cut the horrible mess of plumbing and added this valve inline and am happy to say no leaks and hopefully my copper pipes will be better with this setup and have a long leak free future. J John Guest 1/4 Inch x 25 Feet... https://www.amazon.com/dp/B00N4O434I?ref=ppx_pop_mob_ap_share The John Guest brand has a lot of positive reviews and customers said they are good quality. So far I have no reason to say they are not quality. This tubing looks nice and appears to be of quality material and works well for my needs for my refrigerator supply line. SUNGATOR End Cap, 1/2-Inch Push... https://www.amazon.com/dp/B082KXR42G?ref=ppx_pop_mob_ap_share I have confidence with these caps from my experience with the Sungator Straight Stop Valve. I purchased these in case of a emergency and if I need to temporarily cap a line before I can do a repair.

### ⭐⭐⭐⭐⭐ Simple fix
*by D***S on May 17, 2026*

Hard to find locally

### ⭐⭐⭐⭐⭐ High quality
*by C***N on September 20, 2022*

I feel like these were really expensive but they do a great job. Used with a variety of OD lines/materials and it grabbed on to all of them with no leaks. Release seems to work pretty good to.

## Frequently Bought Together

- John Guest Speedfit 3/8 Inch x 3/8 Inch x 1/4 Inch OD Reducing Tee, Push to Connect Plastic Plumbing Fitting, PP30121208WP
- John Guest 3/8 Inch x 25 Feet LLDPE Tubing, Flexible Water Tubing for Plumbing, Blue, PE-12-EI-025F-B
- John Guest PPSV041212WP Plastic Push Shut Off Valve, 3/8 in. Tube OD, White

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-06-24*