---
product_id: 123890920
title: "PROLUBE Quick Disconnect Grease Coupler | Hands Free Operation | No More Mess, Broken Jaws, or Broken Fittings | Works on All Types of Grease Fittings | 8,000 PSI | 1/8” NPT Threads #43546"
brand: "prolube"
price: "€ 72.70"
currency: EUR
in_stock: true
reviews_count: 8
category: "Prolube"
url: https://www.desertcart.hr/products/123890920-prolube-quick-disconnect-grease-coupler-hands-free-operation-no-more
store_origin: HR
region: Croatia
---

# Heat-treated body 1.5x stronger 8,000 PSI high-pressure rating 6-point contact for secure grip PROLUBE Quick Disconnect Grease Coupler | Hands Free Operation | No More Mess, Broken Jaws, or Broken Fittings | Works on All Types of Grease Fittings | 8,000 PSI | 1/8” NPT Threads #43546

**Brand:** prolube
**Price:** € 72.70
**Availability:** ✅ In Stock

## Summary

> ⚙️ Grease smarter, not harder — the pro’s choice for flawless lubrication

## Quick Answers

- **What is this?** PROLUBE Quick Disconnect Grease Coupler | Hands Free Operation | No More Mess, Broken Jaws, or Broken Fittings | Works on All Types of Grease Fittings | 8,000 PSI | 1/8” NPT Threads #43546 by prolube
- **How much does it cost?** € 72.70 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/123890920-prolube-quick-disconnect-grease-coupler-hands-free-operation-no-more)

## Best For

- prolube enthusiasts

## Why This Product

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

## Key Features

- • **Hands-Free Mastery:** Lock-on design frees your hand for precise grease gun control
- • **Built Tough, Lasts Longer:** Heat-treated body and hardened ballpoints resist deformation and wear
- • **Slimline Access, No Hassle:** Compact design reaches tight spots effortlessly, saving you time and frustration
- • **Lock & Load with Zero Leaks:** Quick Lock Thumb ensures mess-free, leak-proof connection every time
- • **Universal Fit, Ultimate Flex:** Works seamlessly with all grease fittings—SAE, DIN, BS, metric, manual or electric

## Overview

The PROLUBE Quick Disconnect Grease Coupler (#43546) is a heavy-duty, heat-treated grease gun adapter rated for 8,000 PSI. Featuring a 6-point hardened contact design and a quick-lock thumb for hands-free, leak-proof operation, it fits all grease fittings including SAE, DIN, BS, and metric standards. Its slimline profile allows easy access to tight spaces, making it ideal for professional-grade maintenance with no mess, no broken fittings, and no wasted grease.

## Description

PROLUBE 43546 Quick Disconnect Grease Coupler. No more waste, no more broken grease fittings, no more mess. With Quick Lock Thumb, designed for quick and easy release. No leaks once locked on. Provides hands-free operation. Rated up to 8,000 PSI. Coupler body is heat-treated, making it 1.5 times stronger than others. Withstands high pressures and deformation. Ballpoints of contact are hardened, thus giving it a longer life. This grease adapter works on all grease gun fittings and zerks. Compatible with electric and manual grease guns. Compatible with both SAE and metric fittings. Perfect for greasing heavy-duty equipment. The slimline design provides easy access to tight areas. The grease gun tip connects and disconnects easily. PROLUBE is the #1 source for grease gun and lube accessories.

Review: Holds on as advettised. - Works well and makes it easier to grease the tractor.... only thing to note is it is bigger than I thought it would be and would not fit in one spot.
Review: PROLUBE Has uninvented the grease coupler - This thing is a big hunk of metal and an equally big disappointment. Some how this coupler is worse than the free coupler that comes with your grease gun. I've had the lock n lube before and I lost it, so I took a chance and bought this just to try something new. Worst mistake in my greasing life. It doesn't matter how much access you have or if the zerk is straight or at an angle, this thing will not couple and will not put grease into the fitting. Maybe if you pray enough it will work. desertcart needs to have zero stars as an option.

## Features

- Grease Gun Coupler features 6-Point contact design; removes quick & easy under pressure
- Hands free operation: lock on grease gun coupler frees up a hand to better control the grease gun
- Good for all grease fittings and Zerk fittings – SAE, DIN, BS, metric. Locks on with no leaks.
- Our grease gun tip works with manual, air, pneumatic , battery grease guns & grease pumps
- No more broken jaws; no more waste; no more broken grease fittings; no more mess

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07K2VRJDF |
| Date First Available | October 31, 2018 |
| Item Weight | 7 ounces |
| Item model number | HC/21/N |
| Manufacturer | Groz |
| Product Dimensions | 7.5 x 4 x 1.5 inches |

## Product Details

- **Size:** Quick Disconnect
- **Brand:** PROLUBE
- **Color:** Gray
- **Item dimensions L x W x H:** 7.5 x 4 x 1.5 inches
- **Connector Type:** Adapter
- **Thread Type:** NPT
- **Item Weight:** 7.04 ounces
- **Number of Pieces:** 1
- **Manufacturer:** Groz
- **UPC:** 816139019178

## Images

![PROLUBE Quick Disconnect Grease Coupler | Hands Free Operation | No More Mess, Broken Jaws, or Broken Fittings | Works on All Types of Grease Fittings | 8,000 PSI | 1/8” NPT Threads #43546 - Image 1](https://m.media-amazon.com/images/I/616fz-MtiPL.jpg)
![PROLUBE Quick Disconnect Grease Coupler | Hands Free Operation | No More Mess, Broken Jaws, or Broken Fittings | Works on All Types of Grease Fittings | 8,000 PSI | 1/8” NPT Threads #43546 - Image 2](https://m.media-amazon.com/images/I/81Pj6gl7slL.jpg)
![PROLUBE Quick Disconnect Grease Coupler | Hands Free Operation | No More Mess, Broken Jaws, or Broken Fittings | Works on All Types of Grease Fittings | 8,000 PSI | 1/8” NPT Threads #43546 - Image 3](https://m.media-amazon.com/images/I/71HO+l+oHHL.jpg)
![PROLUBE Quick Disconnect Grease Coupler | Hands Free Operation | No More Mess, Broken Jaws, or Broken Fittings | Works on All Types of Grease Fittings | 8,000 PSI | 1/8” NPT Threads #43546 - Image 4](https://m.media-amazon.com/images/I/813YysPAcpL.jpg)
![PROLUBE Quick Disconnect Grease Coupler | Hands Free Operation | No More Mess, Broken Jaws, or Broken Fittings | Works on All Types of Grease Fittings | 8,000 PSI | 1/8” NPT Threads #43546 - Image 5](https://m.media-amazon.com/images/I/81kuteY1GmL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Holds on as advettised.
*by A***R on September 26, 2020*

Works well and makes it easier to grease the tractor.... only thing to note is it is bigger than I thought it would be and would not fit in one spot.

### ⭐ PROLUBE Has uninvented the grease coupler
*by N***G on July 24, 2021*

This thing is a big hunk of metal and an equally big disappointment. Some how this coupler is worse than the free coupler that comes with your grease gun. I've had the lock n lube before and I lost it, so I took a chance and bought this just to try something new. Worst mistake in my greasing life. It doesn't matter how much access you have or if the zerk is straight or at an angle, this thing will not couple and will not put grease into the fitting. Maybe if you pray enough it will work. Amazon needs to have zero stars as an option.

### ⭐⭐⭐ Didn't last long.
*by S***S on January 2, 2020*

Gave it a 3 because I like the design. Used it on a Fireball grease pump on a 55 gallon drum on a service truck. Easy to use. However it lasted about 3 days of heavy greasing on excavators, earth movers, etc. After close inspection the ball bearings on the locking mechanism appear to be worn so they no longer hold when attached. I really hoped for the best out of this but was let down. Can't recommend this coupler . Might last longer on a hand grease gun.

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-04-22*