---
product_id: 51828779
title: "JOHN GUEST TAP ADAPTOR. Push-fit Tube O.D. 3/8\" to 7/16\"-24 UNS Thread. Speedfit Part No CI3212U7S. Inch Size Threaded Acetal Fittings for Drinks Dispensers and Pure Water."
brand: "john guest"
price: "R483"
currency: ZAR
in_stock: true
reviews_count: 9
category: "John Guest"
url: https://www.desertcart.co.za/products/51828779-john-guest-tap-adaptor-push-fit-tube-o-d-3
store_origin: ZA
region: South Africa
---

# Food-grade safe for potable liquids Quick disconnect speeds maintenance Push-fit tech for tool-free connect JOHN GUEST TAP ADAPTOR. Push-fit Tube O.D. 3/8" to 7/16"-24 UNS Thread. Speedfit Part No CI3212U7S. Inch Size Threaded Acetal Fittings for Drinks Dispensers and Pure Water.

**Brand:** john guest
**Price:** R483
**Availability:** ✅ In Stock

## Summary

> ⚡ Connect Fast, Drink Pure – The Smart Choice for Modern Plumbing

## Quick Answers

- **What is this?** JOHN GUEST TAP ADAPTOR. Push-fit Tube O.D. 3/8" to 7/16"-24 UNS Thread. Speedfit Part No CI3212U7S. Inch Size Threaded Acetal Fittings for Drinks Dispensers and Pure Water. by john guest
- **How much does it cost?** R483 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/51828779-john-guest-tap-adaptor-push-fit-tube-o-d-3)

## 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

- • **Universal Compatibility:** Fits 3/8" tube O.D. to 7/16"-24 UNS threaded fittings seamlessly.
- • **Durable & Low Maintenance:** Built to last with routine visual checks ensuring peak performance.
- • **Superior Flow Performance:** Engineered for optimal liquid flow with minimal resistance.
- • **Certified Food-Grade Safety:** Perfectly safe for drinks dispensers and pure water systems.
- • **Effortless Push-Fit Connection:** Tool-free installation that saves you time and hassle.

## Overview

The JOHN GUEST TAP ADAPTOR CI3212U7S features advanced push-fit technology enabling quick, tool-free connections between 3/8" tubes and 7/16"-24 UNS threaded fittings. Made from food-grade acetal plastic and metal, it ensures safe use with potable liquids and drinks dispensers. Trusted globally by beverage producers, it offers superior flow characteristics, durability, and easy maintenance, making it an essential upgrade for efficient, reliable plumbing systems.

## Description

Product description Accepted by almost all the world's beer and beverage producers and by the manufacturers of drinks dispense equipment, John Guest products have quality and performance approvals from leading testing and acceptance authorities. Super Speedfit fittings and related products are not recommended for use with explosive gases, petroleum spirits, and other fuels or for central heating systems. Working Pressure and Temperature Range for Potable Liquids and Air Super Speedfit fittings are suitable for the following pressures and temperatures 10 Bar - 16 Bar @ +1°C 10 Bar - 16 Bar @ +20°C 07 Bar - 10 Bar @ +65°C Maintenance and Replacement Intervals John Guest products generally require little maintenance but as a minimum we recommend routine visual inspection. Frequency of visual inspection will depend on severity of application and risk of failure. If after visual inspection John Guest products appear damaged, cracked, charred, discoloured, heat distorted or corroded they should be replaced. Any product that is or appears to be leaking should be replaced. Product life is affected by the severity of the application, the hostility of the working environment and contact with aggressive chemicals or liquids. It is therefore important that specific replacement intervals be considered by specifiers/users/customers based on previous service life or when failure could result in unacceptable downtime, damage or injury risk. Super Speedfit push-in fittings have been designed for a wide range of industrial applications. They provide a fast and secure way of connecting tubes and offer considerable advantages over conventional fittings. Complex tubing systems can be assembled more rapidly than with traditional methods and because Super Speedfit fittings are easy to disconnect, fault finding and maintenance become a much easier operation. Legal Disclaimer John Guest fittings and related products are specifically designed and manufactured by John Guest to the Technical Specification set out in the John Guest Product Catalogues. All John Guest fittings and related products should be selected, installed, used and maintained in accordance with these Technical Specifications. It is the customer’s/user’s responsibility to ensure that John Guest fittings and related products are suitable for their intended applications, are properly installed and maintained and are used in accordance with the Technical Specifications.

Review: Connector for Harvey drinking water filter - The seller helped me a lot with finding the correct part for my new drinking water tap for Harvey filter. This part works perfectly for connecting to 3/8 water pipe.
Review: Four Stars - good product, arrived on time and does the job.

## Features

- Push-fit technology, Quick disconnection without the need for tools
- Food Quality and suitable for potable liquids
- Suitable for soft metal or plastic tubes
- Superior flow characteristics
- PLEASE NOTE: The measurements for both the fitting and the connecting item should be taken from the internal thread diameter not the outer thread.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00C0EZ88S |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 20,379 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 638 in Pipe Fittings |
| Colour | Dark Gray, Grey |
| Customer Reviews | 3.8 3.8 out of 5 stars (76) |
| Date First Available | 24 Mar. 2013 |
| Item Package Quantity | 1 |
| Item Weight | 4.54 g |
| Item model number | CI3212U7S |
| Manufacturer | JOHN GUEST |
| Material | Metal, Plastic |
| Number of Pieces | 1 |
| Package Dimensions | 10 x 4 x 2 cm; 4.54 g |
| Part number | CI3212U7S |
| Size | 0.375 x 0.4375 inches |

## Images

![JOHN GUEST TAP ADAPTOR. Push-fit Tube O.D. 3/8" to 7/16"-24 UNS Thread. Speedfit Part No CI3212U7S. Inch Size Threaded Acetal Fittings for Drinks Dispensers and Pure Water. - Image 1](https://m.media-amazon.com/images/I/41ZU21MPoaL.jpg)
![JOHN GUEST TAP ADAPTOR. Push-fit Tube O.D. 3/8" to 7/16"-24 UNS Thread. Speedfit Part No CI3212U7S. Inch Size Threaded Acetal Fittings for Drinks Dispensers and Pure Water. - Image 2](https://m.media-amazon.com/images/I/61eOEc72eCL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Connector for Harvey drinking water filter
*by A***R on 3 March 2025*

The seller helped me a lot with finding the correct part for my new drinking water tap for Harvey filter. This part works perfectly for connecting to 3/8 water pipe.

### ⭐⭐⭐⭐ Four Stars
*by J***9 on 31 March 2018*

good product, arrived on time and does the job.

### ⭐⭐⭐⭐⭐ Used with the filter tap
*by J***M on 4 October 2020*

Fitted lovely and did the job well

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-03-02*