---
product_id: 48412746
title: "JOHN GUEST TAP ADAPTOR. Push-fit Tube O.D. 1/4\" to 7/16\"-24 UNS Thread. Speedfit Part No CI3208U7S. Inch Size Threaded Acetal Fittings for Drinks Dispensers and Pure Water."
brand: "john guest"
price: "€ 11.72"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.hr/products/48412746-john-guest-tap-adaptor-push-fit-tube-o-d-1
store_origin: HR
region: Croatia
---

# Certified for cold potable water Push-fit quick installation Precision 1/4" to 7/16" thread fit JOHN GUEST TAP ADAPTOR. Push-fit Tube O.D. 1/4" to 7/16"-24 UNS Thread. Speedfit Part No CI3208U7S. Inch Size Threaded Acetal Fittings for Drinks Dispensers and Pure Water.

**Brand:** john guest
**Price:** € 11.72
**Availability:** ✅ In Stock

## Summary

> 💧 Connect with confidence—pure water, zero fuss!

## Quick Answers

- **What is this?** JOHN GUEST TAP ADAPTOR. Push-fit Tube O.D. 1/4" to 7/16"-24 UNS Thread. Speedfit Part No CI3208U7S. Inch Size Threaded Acetal Fittings for Drinks Dispensers and Pure Water. by john guest
- **How much does it cost?** € 11.72 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/48412746-john-guest-tap-adaptor-push-fit-tube-o-d-1)

## 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

- • **Premium Brass Durability:** Engineered to last with corrosion-resistant brass for pure water safety.
- • **Compact & Lightweight Design:** At just 10g and pocket-sized, it fits anywhere without bulk.
- • **Effortless Push-Fit Connection:** Snap your 1/4" water pipe in place—no tools, no hassle.
- • **Universal Thread Compatibility:** Seamlessly screws onto 7/16"-24 UNS threaded taps for versatile use.
- • **Optimized for Pure Water Systems:** Specifically designed for RO and drinking water dispensers—taste the difference.

## Overview

The JOHN GUEST TAP ADAPTOR CI3208U7S is a high-spec brass fitting designed to connect 1/4" push-fit tubes to 7/16"-24 UNS threaded pure water taps. Ideal for cold potable water and reverse osmosis systems, it ensures a secure, corrosion-resistant, and tool-free installation for professional-grade water dispensing.

## Description

This connection screws onto the threaded stem of your pure water filter tap. Simplifies connection of 1/4 Water Pipe to Pure Water Tap.;These parts are made to the highest specification, and are suitable for water filter taps & RO Reverse Osmosis water filter taps;THESE CONNECTIONS ARE DESIGNED FOR USE IN ALL COLD POTABLE WATER APPLICATIONS

## Features

- 1/4 Drinking Water Tap Push Fit Adaptor John Guest CI3208U7S

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | vyair UK |
| Part Number | CI3208U7S 1/4" x 7/16" UNS |
| Package Dimensions | 9.9 x 8.2 x 1.8 cm; 10 g |
| Manufacturer reference | CI3208U7S 1/4" x 7/16" UNS |
| Colour | Grey |
| Material | Brass |
| Item Package Quantity | 1 |
| Number of Pieces | 1 |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 10 g |

## Product Details

- **Brand:** John Guest
- **Material:** Brass
- **Colour:** Grey
- **Item weight:** 10 Grams
- **Nominal wall thickness:** 0.25 inches
- **Outside diameter:** 0.25 Inches
- **Manufacturer:** vyair UK

## Images

![JOHN GUEST TAP ADAPTOR. Push-fit Tube O.D. 1/4" to 7/16"-24 UNS Thread. Speedfit Part No CI3208U7S. Inch Size Threaded Acetal Fittings for Drinks Dispensers and Pure Water. - Image 1](https://m.media-amazon.com/images/I/41HJOgCyZQL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ EXCELLENT!
*by C***N on 25 January 2022*

Perfect fit and really good quality. Brilliant Service !!!

### ⭐⭐⭐⭐⭐ Does what it says on the tin
*by D***S on 29 July 2021*

Recommended

### ⭐⭐⭐⭐ Product great but Amazon site/recommendations disingenuous
*by R***D on 14 March 2021*

I purchase this with a tap for drinking water filter ("Fulfilled by Amazon") but Amazon site had it's usual "Frequently bought together" which included this 1/8" connector and the similar 1/4" connector. In fact the tap included an 1/8" connection so this fitting was not required (It would have been required if my feed line was the less common 1/4"). Was cheap enough, so have fitted rather than return as not this supplier's fault and tap fitting does cause some restriction at connection which this fitting does not but still think Amazon site was disingenuous. None-the-less this product and supplier were good.

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**Shop now:** [https://www.desertcart.hr/products/48412746-john-guest-tap-adaptor-push-fit-tube-o-d-1](https://www.desertcart.hr/products/48412746-john-guest-tap-adaptor-push-fit-tube-o-d-1)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-04-23*