The 9 Best Grease Couplers in 2023

Locks on, does not leak

1/8" NPT compatible with all grease guns - battery, pneumatic, manual

Grease goes in, not on, the machine

World's original locking grease coupler.

World's only rebuildable grease coupler. Lowest lifetime cost.

Rated to 10,000 PSI! Locks on, stays on. Does not leak once locked on.

Hands free - does not pop off under pressure. Easily release from fittings with the thumb lever, even at extreme pressure.

Fits all standard Grease Guns - 1/8 NPT fitting. Fits all SAE and Metric Zerk fittings. Simply replace your existing coupler.

Over 3.5" of reach. Great for shielded PTO shafts, axles, harvester heads, U Joints and other recessed grease fittings.

Includes rebuild kit. Easily replace seal and jaws without replacing the coupler.

For use with hydraulic type grease fittings

Max operating pressure up to 10, 000 psi

Heavy Duty replacement piece

Item Package Dimension: 3.56" L x 2.94" W x 1.25" H

RELIABLE LOCKING & SEALING--This grease gun coupler reinforced jaws and quality sealing gasket which ensure long lasting and stable performance, and prevent leakage even at 12,000 PSI extreme pressure.

HIGH-QUALITY MATERIALS--This high quality grease gun coupler is made of premium quality zinc coated alloy steel , which heavier and stronger than other grease couplers on the market. Can be used for a long time.

UPGRADED UNIQUE DESIGN--The unique grease gun coupler have the unique retract mechanism pull back the inner seal and leave outer socket ring wide open, making the grease injection more efficient and convenient, and help locating zerk fittings at blind spot.

EASY TO USE--You can one hand operation, this is a feature of the Grease gun coupler with smooth retraction mechanism. No need to hold while greasing, after locking the grease gun coupler, we can free our hands to operate the grease gun.

HIGH COMPATIBILITY--The compact grease gun coupler compatible with most grease guns and zerk fittings, fit all 1/8 NPT standard grease guns, mini grease guns, which is an excellent device to have on a construction job site and farm or in an auto mechanic garage to use on your machinery, and fits all DIN and SAE grease fittings, just replace your existing grease gun.

Built for heavy-duty service

Suitable for Use on most Hand, Battery Powered or Air Operated Grease Guns & Bulk Grease Pumps

Ergonomic Thumb Lever Design makes Coupling and Uncoupling totally Effortless

Several quality control checks to ensure the highest quality level

【Locking and sealing】Saker 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 Saker 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.

【Upgrade grease coupler】AORRZER grease gun coupler with 12 Inch Spring Flex Hose，Upgrade-strong 6-jaw coupler, grease gun coupler reinforced jaws and quality sealing gasket ensure long lasting and stable performance tighter and no oil leakage,Use testing: Leak prevention even when tested at extreme pressures of 12,000 PSI or higher.

【High quality and sturdy】The grease gun coupler is made of upgraded material alloy steel, optimizing the thickness of the steel and upgrading the 6-jaw bite lock on the original basis, quality steel, quality design principle, Wear-resistant and durable Long life span, Lowest lifetime cost, believe me, this will be your best choice!!

【Simple operation】Grease gun coupler with smooth strong 6-jaw bite lock on function allows one-handed operation, no need to hold when lubricating, after locking the grease gun coupler, you can free your hands to operate the grease gun.

【Wide application】grease gun coupler fits all 1/8" NPT standard grease gun, Pneumatic Grease Gun, manual grease gun, electric grease gun, also suitable for all DIN and SAE grease nipples and all SAE and metric Zerk joints. Simply replace your existing grease gun coupler and this Strong grease gun tool is ready for use in automotive repair, job site large machinery and axles and drive trains, it is also great for lubricating farm tractors, plows, stump pullers, disc harrows, seeders and more.

【Customer Service】 AORRZER promises to provide you with a 1-year warranty, as long as you choose the AORRZER grease gun coupler in the use of any problems encountered in the process can always contact us, we will provide you with 24-hour service, so that you have a family-like feeling!

【Reasons to choose AORRZER】With AORRZER grease gun coupler you not only have a new upgraded and enhanced version (high pressure, leak-proof, fast grease filling, optimized steel thickness, 6-jaw bite lock, one-hand operation, lowest lifetime cost) but also the coupler fits all 1/8" NPT standard grease gun fitting, we also promise a 1-year warranty, so you can be assured that this will be your best choice！

【Upgrade grease coupler】AORRZER grease gun coupler Upgrade-strong 6-jaw coupler, grease gun coupler reinforced jaws and quality sealing gasket ensure long lasting and stable performance tighter and no oil leakage, Use testing: Leak prevention even when tested at extreme pressures of 12,000 PSI or higher.

【High quality and sturdy】The grease gun coupler is made of upgraded material alloy steel, optimizing the thickness of the steel and upgrading the 6-jaw bite lock on the original basis, quality steel, quality design principle, Wear-resistant and durable Long life span, Lowest lifetime cost, believe me, this will be your best choice!!

【Simple operation】Grease gun coupler with smooth strong 6-jaw bite lock on function allows one-handed operation, no need to hold when lubricating, after locking the grease gun coupler, you can free your hands to operate the grease gun.

【Wide application】grease gun coupler fits all 1/8" NPT standard grease gun, Pneumatic Grease Gun, manual grease gun, electric grease gun, also suitable for all DIN and SAE grease nipples and all SAE and metric Zerk joints. Simply replace your existing grease gun coupler and this Strong grease gun tool is ready for use in automotive repair, job site large machinery and axles and drive trains, it is also great for lubricating farm tractors, plows, stump pullers, disc harrows, seeders and more.

【Customer Service】 AORRZER promises to provide you with a 1-year warranty, as long as you choose the AORRZER grease gun coupler in the use of any problems encountered in the process can always contact us, we will provide you with 24-hour service, so that you have a family-like feeling!

【Reasons to choose AORRZER】With AORRZER grease gun coupler you not only have a new upgraded and enhanced version (high pressure, leak-proof, fast grease filling, optimized steel thickness, 6-jaw bite lock, one-hand operation, lowest lifetime cost) but also the coupler fits all 1/8" NPT standard grease gun fitting, we also promise a 1-year warranty, so you can be assured that this will be your best choice！

【LOCKING AND SEALING】: Grease gun coupler 6 jaw design snaps on and off grease fittings easier, reinforced jaws and quality sealing gasket ensure long lasting and stable performance, does not leak even at 10,000 PSI extreme pressure.

【HIGH QUALITY】: Built with premium quality Zinc Coated Alloy Steel for all-day performance in the indoor and outdoor, stable and reliable.

【ONE HAND OPERATION】: Double handle with anti-slip design and smooth retraction mechanism allows one-hand operation, easy installation/removal. Once locks onto zerk fitting, it stays on and frees both hands to operate the grease gun.

【WIDE APPLICATION】: Compatible with All 1/8" NPT standard, mini, battery, pneumatic, manual Grease Guns and Zerk Fittings, it also fits all DIN and SAE grease fittings, simply replace your existing grease gun couplers.

【AFTER-SALE SERVICE】: We provides a one-year warranty, if you have any questions, Please feel free to contact us by email, we will deal with you within 12 hours.