---
product_id: 81391626
title: "Metric John Guest, Speedfit Stem Adaptor 12mm Stem OD x 1/2\" Thread"
brand: "john guest"
price: "VT3536"
currency: VUV
in_stock: true
url: https://www.desertcart.vu/products/81391626-metric-john-guest-speedfit-stem-adaptor-12mm-stem-od-x
store_origin: VU
region: Vanuatu
---

# 1/2 inch robust threaded connection 12mm stem OD precision fit FDA & NSF certified safe materials Metric John Guest, Speedfit Stem Adaptor 12mm Stem OD x 1/2" Thread

**Brand:** john guest
**Price:** VT3536
**Availability:** ✅ In Stock

## Summary

> 🔧 Connect with confidence — the smart adaptor for the savvy pro.

## Quick Answers

- **What is this?** Metric John Guest, Speedfit Stem Adaptor 12mm Stem OD x 1/2" Thread by john guest
- **How much does it cost?** VT3536 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/81391626-metric-john-guest-speedfit-stem-adaptor-12mm-stem-od-x)

## 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

- • **Lightweight Durability:** At just 20g, this adaptor combines strength and portability without compromising performance.
- • **Universal Compatibility:** Designed to work flawlessly with water, air, inert gases, and more—versatility that keeps you ahead.
- • **Precision Engineered Fit:** 12mm stem OD ensures seamless, leak-free connections for your pneumatic or vacuum systems.
- • **Trusted Brand Reliability:** From John Guest, a name synonymous with innovation and quality in fluid control solutions.
- • **Certified Safety & Quality:** Crafted from FDA-approved acetal copolymer with nitrile O-rings, meeting NSF 51 & 62 standards for peace of mind.

## Overview

The Metric John Guest Speedfit Stem Adaptor features a 12mm stem OD and 1/2 inch threaded connection, made from FDA-approved grey acetal copolymer with nitrile O-rings. Certified to NSF 51 and 62 standards, it supports water, air, inert gases, and pneumatic or vacuum systems, delivering reliable, leak-free performance in a lightweight 20g design.

## Description

Metric John Guest, Speedfit Stem Adaptor 12mm Stem OD x 1/2" Thread

## Features

- MATERIAL: Grey acetal copolymer with nitrile O-rings
- DIMENSIONS: 12 mm stem OD x 1/2 inch thread
- CERTIFICATIONS: FDA approved materials, NSF 51 and 62 certified
- CONFIGURATION: Stem adaptor design
- APPLICATIONS: Compatible with water, air, inert gases and pneumatic or vacuum systems

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | John Guest |
| Part Number | PI290808S |
| Package Dimensions | 25.2 x 7.8 x 3.5 cm; 20 g |
| Manufacturer reference | PI290808S |
| Colour | Gray |
| Material | Acetal Copolymer |
| Number of Pieces | 1 |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 20 g |

## Product Details

- **Material:** Acetal Copolymer
- **Brand:** John Guest
- **Colour:** Gray
- **Connector type:** Adapter
- **Thread size:** 0.5 inch
- **Thread type:** NPT
- **Item weight:** 0.02 Kilograms
- **Number of pieces:** 1
- **Manufacturer:** John Guest

## Images

![Metric John Guest, Speedfit Stem Adaptor 12mm Stem OD x 1/2" Thread - Image 1](https://m.media-amazon.com/images/I/61OJd7thKSL.jpg)
![Metric John Guest, Speedfit Stem Adaptor 12mm Stem OD x 1/2" Thread - Image 2](https://m.media-amazon.com/images/I/61wps8V27TL.jpg)
![Metric John Guest, Speedfit Stem Adaptor 12mm Stem OD x 1/2" Thread - Image 3](https://m.media-amazon.com/images/I/41cG6b7F9RL.jpg)

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**Shop now:** [https://www.desertcart.vu/products/81391626-metric-john-guest-speedfit-stem-adaptor-12mm-stem-od-x](https://www.desertcart.vu/products/81391626-metric-john-guest-speedfit-stem-adaptor-12mm-stem-od-x)

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-05-04*