---
product_id: 61672965
title: "Stauff SMK-20 Test Coupling with Ball Check, 9137psi Rated, Buna Seals, Zinc-Plated Steel, 1/4\" NPT"
brand: "stauff"
price: "€ 0.74"
currency: EUR
in_stock: false
url: https://www.desertcart.pt/products/61672965-stauff-smk-20-test-coupling-with-ball-check-9137psi-rated
store_origin: PT
region: Portugal
---

# Buna Seals 1/4" NPT 9137psi Rated Stauff SMK-20 Test Coupling with Ball Check, 9137psi Rated, Buna Seals, Zinc-Plated Steel, 1/4" NPT

**Brand:** stauff
**Price:** € 0.74
**Availability:** ❌ Out of Stock

## Summary

> 🔧 Elevate Your Testing Game with Stauff!

## Quick Answers

- **What is this?** Stauff SMK-20 Test Coupling with Ball Check, 9137psi Rated, Buna Seals, Zinc-Plated Steel, 1/4" NPT by stauff
- **How much does it cost?** € 0.74 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/61672965-stauff-smk-20-test-coupling-with-ball-check-9137psi-rated)

## Best For

- stauff enthusiasts

## Why This Product

- Trusted stauff brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Precision Engineering:** Featuring a stainless steel ball for reliable performance and minimal wear over time.
- • **Versatile Application:** Ideal for various industrial applications, making it a must-have for any professional toolkit.
- • **Durable Zinc-Plated Steel:** Crafted from zinc/nickel-plated steel, this coupling is designed for longevity and resistance to corrosion.
- • **Unmatched Pressure Resilience:** With a max working pressure of 9137psi, this coupling is built to handle the toughest tasks.
- • **Seamless Under Pressure Connection:** Connect effortlessly under pressure up to 5800psi, ensuring efficiency in every operation.

## Overview

The Stauff SMK-20 Test Coupling is engineered for high-performance applications, featuring a robust 9137psi rating and durable zinc-plated steel construction. With its 1/4" NPT connection and Buna seals, it ensures reliable and efficient connections even under pressure.

## Description

Stauff offers a wide range of screw-in leakproof test points and test couplings for hydraulic systems. These test points are used in a variety of applications, including monitoring and control of pressure, venting, sampling, and accumulator filling.

## Features

- Stauff Test Point, 1/4" NPT connection
- Max Working Pressure of 9137psi (630bar)
- Connect under pressure up to 5800psi.
- Steel, Zinc/Nickel-plated body material
- Stainless Steel Ball

## Images

![Stauff SMK-20 Test Coupling with Ball Check, 9137psi Rated, Buna Seals, Zinc-Plated Steel, 1/4" NPT - Image 1](https://m.media-amazon.com/images/I/81qQQDpL2eL.jpg)

## Questions & Answers

**Q: Pic shows -04 orb connection. just need to verify that this part is indeed 1/4 m npt ?**
A: Yes! This is a 1/4" MNPT connection test point. We do offer both the SAE and NPT versions, and this is a stock photo from Stauff, but this listing is for the 1/4" MNPT version.

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**Shop now:** [https://www.desertcart.pt/products/61672965-stauff-smk-20-test-coupling-with-ball-check-9137psi-rated](https://www.desertcart.pt/products/61672965-stauff-smk-20-test-coupling-with-ball-check-9137psi-rated)

---

*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-10-10*