---
product_id: 7565395
title: "Quick Coupler Key Tool for Coupler Valve, 1-Inch MPT x 3/4-Inch FPT Outlet, Sprinkler Garden Irrigation System, Solid Brass, QK-100"
brand: "underhill"
price: "€ 165.88"
currency: EUR
in_stock: true
reviews_count: 6
category: "Underhill"
url: https://www.desertcart.gr/products/7565395-quick-coupler-key-tool-for-coupler-valve-1-inch-mpt
store_origin: GR
region: Greece
---

# Heavy-duty galvanized handles for easy use 1-Inch MPT x 3/4-Inch FPT precision fit Solid brass & stainless steel durability Quick Coupler Key Tool for Coupler Valve, 1-Inch MPT x 3/4-Inch FPT Outlet, Sprinkler Garden Irrigation System, Solid Brass, QK-100

**Brand:** underhill
**Price:** € 165.88
**Availability:** ✅ In Stock

## Summary

> 🌿 Unlock your garden’s full potential with the Underhill Quick Coupler Key!

## Quick Answers

- **What is this?** Quick Coupler Key Tool for Coupler Valve, 1-Inch MPT x 3/4-Inch FPT Outlet, Sprinkler Garden Irrigation System, Solid Brass, QK-100 by underhill
- **How much does it cost?** € 165.88 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/7565395-quick-coupler-key-tool-for-coupler-valve-1-inch-mpt)

## Best For

- underhill enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Crafted from solid red brass with stainless steel lug for unmatched corrosion resistance and longevity.
- • **Effortless Operation:** Heavy-duty galvanized handles ensure quick, smooth coupling—no more fumbling in the garden.
- • **Peace of Mind Warranty:** Backed by a 2-year no-hassle warranty—because your garden deserves the best.
- • **Seamless Compatibility:** Works flawlessly with Rain Bird, Toro, Hunter & Buckner systems for ultimate irrigation flow.
- • **Professional Grade Reliability:** Trusted by irrigation pros and home gardeners alike for consistent, leak-free performance.

## Overview

The Underhill QK-100 Quick Coupler Key is a precision-engineered irrigation tool featuring a 1-Inch MPT x 3/4-Inch FPT outlet, crafted from solid brass with stainless steel components for superior durability. Compatible with major brands like Rain Bird and Toro, it offers heavy-duty galvanized handles for easy, professional-grade operation, backed by a 2-year warranty to ensure reliable garden watering performance.

## Description

Buy Underhill Quick Coupler Key Tool for Coupler Valve, 1-Inch MPT x 3/4-Inch FPT Outlet, Sprinkler Garden Irrigation System, Solid Brass, QK-100: Parts & Connectors - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Bang for the buck. - Fits perfectly and works great
Review: Golf course - Item is as described, perfect for golf course use as I intended. Cheers

## Features

- QUICK COUPLER KEY: The Underhill QK-100 Quick Coupler Key provides easy water access for your hose. An essential garden tool for safety and peace of mind. From a trusted USA-based company.
- COMPATIBILITY: Compatible with Rain Bird, compatible with Toro, compatible with Hunter, and compatible with Buckner for maximum performance and seamless garden irrigation. 1-Inch MPT x 3/4-Inch FPT Outlet.
- DURABLE: Works with both one piece and two piece quick couplers. Made from solid red brass with a stainless steel single lug on all models for enhanced durability.
- HEAVY-DUTY: Underhill provides garden hose accessories that are quick and easy to install. The Quick Coupler Key features heavy-duty galvanized handles for simple operation.
- PROFESSIONAL QUALITY: Our commercial-grade Quick Coupler Water Key is ideal for professional irrigation specialists or home gardeners.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B003TLN7Z2 |
| Best Sellers Rank | #423,102 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,521 in Hex Keys |
| Brand Name | Underhill |
| Color | Red |
| Customer Reviews | 4.4 4.4 out of 5 stars (45) |
| Exterior Finish | Brass |
| Global Trade Identification Number | 00732185000406 |
| Included Components | hose clamp |
| Item Dimensions | 14 x 4 x 6 inches |
| Item Weight | 1.75 Pounds |
| Manufacturer | Underhill |
| Manufacturer Warranty Description | Underhill International offers a 2-year, no hassle warranty for every product we manufacture. After 30-day Amazon policy, please contact Underhill International directly for any warranty claims. |
| Material Type | Brass |
| Model Number | QK-100 |
| Number of Pieces | 1 |
| Size | 1-Inch MPT x 3/4-Inch FPT - QK-100 |
| UPC | 732185000406 |

## Product Details

- **Brand:** Underhill
- **Color:** Red
- **Exterior Finish:** Brass
- **Global Trade Identification Number:** 00732185000406
- **Item Weight:** 1.75 Pounds
- **Item dimensions L x W x H:** 14 x 4 x 6 inches
- **Manufacturer:** Underhill
- **Material:** Brass
- **Number of Pieces:** 1
- **Size:** 1-Inch MPT x 3/4-Inch FPT - QK-100

## Images

![Quick Coupler Key Tool for Coupler Valve, 1-Inch MPT x 3/4-Inch FPT Outlet, Sprinkler Garden Irrigation System, Solid Brass, QK-100 - Image 1](https://m.media-amazon.com/images/I/71cm2gx1zgL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Bang for the buck.
*by A***X on November 10, 2024*

Fits perfectly and works great

### ⭐⭐⭐⭐⭐ Golf course
*by J***S on June 16, 2021*

Item is as described, perfect for golf course use as I intended. Cheers

### ⭐⭐⭐⭐⭐ Exactly what was needed
*by J***F on December 24, 2019*

Was a little concerned at first since the device was a little different than the original but it works perfectly as designed.

## Frequently Bought Together

- Underhill Quick Coupler Key Tool for Coupler Valve, 1-Inch MPT x 3/4-Inch FPT Outlet, Sprinkler Garden Irrigation System, Solid Brass, QK-100
- Underhill Garden Hose Swivel, 1-Inch FPT x 1-Inch MHT Outlet, Metal Connectors, Adapter, Fittings, Outdoor Garden, Solid Brass, HS-101
- Underhill Quick Coupler Valve, Single Slot 1-Inch FPT Inlet, Sprinkler Garden Irrigation System, Solid Brass, High Visibility Rubber Cover, QV-100R

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**Shop now:** [https://www.desertcart.gr/products/7565395-quick-coupler-key-tool-for-coupler-valve-1-inch-mpt](https://www.desertcart.gr/products/7565395-quick-coupler-key-tool-for-coupler-valve-1-inch-mpt)

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-03-30*