---
product_id: 551441350
title: "Inwell Locking Grease Gun Coupler (2 PC),Duty Quick Release Grease Couplers,18mm Head,Upgrade to 14000 PSI,Compatible with All Grease Guns 1/8\" NPT Zerk Fittings"
brand: "inwell"
price: "HK$272"
currency: HKD
in_stock: false
reviews_count: 8
url: https://www.desertcart.hk/products/551441350-inwell-locking-grease-gun-coupler-2-pc-duty-quick-release
store_origin: HK
region: Hong Kong
---

# 14000 PSI Locking Seal One-Hand Quick Release 18mm Heavy-Duty Head Inwell Locking Grease Gun Coupler (2 PC),Duty Quick Release Grease Couplers,18mm Head,Upgrade to 14000 PSI,Compatible with All Grease Guns 1/8" NPT Zerk Fittings

**Brand:** inwell
**Price:** HK$272
**Availability:** ❌ Out of Stock

## Summary

> 🔧 Lock, Load, and Lubricate Like a Pro!

## Quick Answers

- **What is this?** Inwell Locking Grease Gun Coupler (2 PC),Duty Quick Release Grease Couplers,18mm Head,Upgrade to 14000 PSI,Compatible with All Grease Guns 1/8" NPT Zerk Fittings by inwell
- **How much does it cost?** HK$272 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/551441350-inwell-locking-grease-gun-coupler-2-pc-duty-quick-release)

## Best For

- inwell enthusiasts

## Why This Product

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

## Key Features

- • **Rugged Zinc Alloy Build:** Premium zinc-coated steel ensures durability that stands up to the toughest shop and job site demands.
- • **Blind Spot Friendly Design:** Patented retract mechanism lets you easily access hard-to-reach grease fittings—never miss a spot again.
- • **Precision Fit for Pro Tools:** 18mm head engineered for seamless compatibility with all 1/8" NPT Zerk fittings—upgrade your grease game.
- • **Unmatched Pressure Endurance:** Lock in performance with a patented seal rated up to 14000 PSI—no leaks, no worries.
- • **Effortless One-Hand Operation:** Smooth retract mechanism frees your hands—work smarter, not harder.

## Overview

The Inwell Locking Grease Gun Coupler is a patented, heavy-duty tool designed for professional-grade lubrication. Featuring a robust zinc alloy build, an 18mm head compatible with all 1/8" NPT Zerk fittings, and a quick-release one-hand operation, it delivers leak-proof performance up to 14000 PSI. Ideal for mechanics, construction, and farm equipment maintenance, it ensures efficient, hands-free greasing even in hard-to-reach areas.

## Description

Buy Inwell Locking Grease Gun Coupler (2 PC),Duty Quick Release Grease Couplers,18mm Head,Upgrade to 14000 PSI,Compatible with All Grease Guns 1/8" NPT Zerk Fittings: Grease Guns - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: grease gun - works good
Review: It work grease and the hold is great it like having a third hand. - I don't know why I never bought these before.

## Features

- Locking and sealing-Inwell grease gun coupler own an exclusive US patent.Our grease gun coupler reinforced jaws and quality sealing gasket ensure long lasting and stable performance,prevent leakage even at 14000 PSI extreme pressure.Matters needing attention:The diameter of our grease gun joint is 18mm.For the case where the diameter of the joint is less than 18mm,we do not recommend applying it.
- Robust Build Quality-This high quality grease gun coupler built with premium quality zinc coated alloy steelfor for all-day performance in the shop or garage,heavier and stronger than any other grease couplers on the market.
- One Hand Operation-Grease gun coupler with smooth retraction mechanism allows one-hand operation.No need to hold while greasing,after locking the grease gun coupler,you can free your hands to operate the grease gun.
- Unique Design-Upgraded grease gun coupler have the unique and patented Retract Mechanism pull back the inner seal and leave outer socket ring wide open,which help locating zerk fittings at blind spot.
- Wide Application-The Inwell portable grease gun coupler fits all 1/8 NPT standard grease guns, mini grease guns,It also fits all DIN and SAE grease fittings,simply replace your existing grease gun couplers.This heavy-duty tool is an excellent device to have on a construction job site or in an auto mechanic garage to use on your large machinery.It is also a great lubrication tool to have at the farm for your tractor, plow,stump puller,disc harrow,seeder,etc.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BZHFK31J |
| Best Sellers Rank | #668,982 in Automotive ( See Top 100 in Automotive ) #665 in Grease Guns |
| Brand | Inwell |
| Customer Reviews | 4.3 4.3 out of 5 stars (274) |
| Date First Available | June 27, 2023 |
| Exterior | Painted |
| Item Weight | 12.3 ounces |
| Item model number | Grease Gun Coupler |
| Manufacturer | Inwell |
| Manufacturer Part Number | 201503 |
| Model | Grease Gun Coupler |
| Product Dimensions | 4 x 1.5 x 1 inches |

## Images

![Inwell Locking Grease Gun Coupler (2 PC),Duty Quick Release Grease Couplers,18mm Head,Upgrade to 14000 PSI,Compatible with All Grease Guns 1/8" NPT Zerk Fittings - Image 1](https://m.media-amazon.com/images/I/71l2WqwX06L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ grease gun
*by A***R on October 10, 2025*

works good

### ⭐⭐⭐⭐⭐ It work grease and the hold is great it like having a third hand.
*by R***I on August 21, 2025*

I don't know why I never bought these before.

### ⭐⭐⭐⭐ As described
*by 4***L on August 23, 2025*

As advertised

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**Shop now:** [https://www.desertcart.hk/products/551441350-inwell-locking-grease-gun-coupler-2-pc-duty-quick-release](https://www.desertcart.hk/products/551441350-inwell-locking-grease-gun-coupler-2-pc-duty-quick-release)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-02-23*