Free Shipping On Orders $25+ ● MONEY-BACK GUARANTEE ● CLICK FOR SPECIAL OFFER

LOCKNLUBE® GREASE COUPLER

The LockNLube® Grease Coupler is compatible with all grease guns and grease fittings. It does not leak once locked on and will not pop off under pressure. No hands are needed to align or hold the coupler in place while greasing. You have both hands free to operate your grease gun and know that the grease will go in, not on, your machine. Guaranteed.

  • Rated up to 10,000 PSI.
  • 1/8″ NPT thread. Compatible with all grease guns.
  • Works on all Zerk fittings, SAE and metric.
  • Comes with free replacement seal and jaws. Fully rebuildable.
  • Easily releases from clogged grease fittings, even under pressure.

$29.95

WITH FREE SHIPPING &
100% SATISFACTION GUARANTEED

  • DESCRIPTION
  • DOWNLOADS
  • RETURNS & EXCHANGES

DESCRIPTION

The LockNLube® Grease Coupler is compatible with all grease guns and grease fittings. It does not leak once locked on and will not pop off under pressure. No hands are needed to align or hold the coupler in place while greasing. You have both hands free to operate your grease gun and know that the grease will go in, not on, your machine. Guaranteed.

It has a unique sliding sleeve, activated by a thumb lever. The sleeve locks the four spring-steel jaws onto the Zerk fitting, and releases the jaws by pushing on the thumb lever. When the jaws are locked onto the Zerk, a leak-proof seal is created. The locked connection is positive and rigid preventing the coupler from coming loose and breaking the leak-proof seal. If a fitting becomes pressurized, especially a recessed one, just depress the thumb lever and release the coupler. You do not need to "crack" the coupler off to the side to release, simply press the thumb lever and it easily releases.

The LockNLube® Grease Coupler is fully rebuildable. If it ever shows signs of leaking, simply replace the seal and jaws and it is as good as new. See our tutorial here. We include a free replacement seal and jaws with every coupler that we sell. Additional Seal Kits are also available from our store.

RETURNS

LockNLube provides a full 30-day money-back guarantee on all products purchased from its website. If you are dissatisfied with your purchase, you can return it to us by shipping the item back within 30 days of purchase. Once we receive your return, we will refund you the full purchase price of the item.

Please ensure that the item you are returning is repackaged securely, with all its component parts included. Please also include any documentation that came with your original order, such as a packing slip or order confirmation.

SHIP YOUR ITEM BACK TO US

Return items to us by shipping to:

Lock and Lube
21 Technology Drive Suite #2
West Lebanon, NH 03784

For more information, please call 603.795.2298. We’re a small business and we’ll pick up the phone in New Hampshire when you call.

THE ULTIMATE GREASE COUPLER

1. Improved sliding sleeve releases easily under pressure.

2. Thicker steel jaws resist bending

3. New rubber seal lasts twice as long

1. Improved sliding sleeve releases easily under pressure.

2. Thicker steel jaws resist bending.

3. New rubber seal lasts twice as long.

QUICK AND EASY TO USE

Spring Loaded Activation Trigger

Simply depresses the trigger when locking the coupler onto the Zerk or to release the coupler when done.

Easy to clip-off, regardless of pressure build up in the line. NO MORE stuck couplers.

No need to hold while greasing. Lock-on and free up both hands to operate your grease gun.

Sliding Sleeve

Locks the coupler onto the Zerk. When you pump grease...it stays on!

1/8" NPT Female Thread

Standard size, fits all grease guns.

Four Hardened Spring Steel Jaws

 Rated over 10,000 PSI. Will not bend or release under pressure. Fits all Zerk fittings.

Leak Free, High Pressure Seal

 Patented design eliminates leaks and extends seal life.

WORKS WITH ALL GREASE GUNS TYPES

Works with all grease gun types:

 Pneumatic

Manual

Electric

Works with all grease gun manufacturers:

Lincoln

 Lumax

Alemite

Plews lubrication (Edelmann)

Grainger

SKF

Macnaught

ADT

Milwaukee

John Deere

Wilmar

Legacy

Allstar

Sealey

Draper

DeWalt

And many others

Will not pop off or leak under pressure

The LockNLube Grease Coupler is rated to 10,000 PSI (690 Bar) and will not release under pressure. No hands are needed to align the coupler or keep it attached. No leaking grease, and no problem using both hands to pump your grease gun, or move around the machine. Eliminate frustration from machine maintenance by using the only grease coupler that is guaranteed not to leak and not to pop off under pressure.

UPGRADE YOUR GREASE COUPLER

The LockNLube® Grease Coupler will work to its full potential, even at extreme angles. Once it is locked on you have the peace of mind that it will not pop off, will not leak, and grease is going into the bearings that need it, and not onto your machine. Stop fighting with old greasing equipment that can’t be trusted and upgrade to the grease coupler that almost makes greasing fun.

KEY SPECIFICATIONS

Max Pressure

10,000 psi (390 Bar)

Zerk Compatibility

Fits all DIN and SAE specification Zerks (grease nipples).

Coupler Thread

1/8" NPT female thread.

Dimensions

L: 3½ x W: ⅗ x H: 1⅗ In (L: 88 x W: 16.4 x H: 41 mm)

Diameter (front of coupler)

3/5 in (16 mm). Fits most recessed grease fittings (Zerks.) ~1mm larger than standard coupler.

Weight

4 oz. (100 grams)

Grease Gun Compatibility

Works with all grease gun types: pneumatic, manual, and electric.

Seal

Durable nitrile rubber seal for longevity under high pressure.

Lock-on Mechanism

Four hardened steel jaws are resilient under high pressure. Patent protected.

Patent

US Patent #8,955,544

CUSTOMER REVIEWS

"Best investment I've made, makes maintenance a lot easier when you don't have to strain, twist and stretch to hold the coupler on the fitting!"

Grady H.

"I will say this makes using a grease gun very easy!! Anyone that has used grease guns with the press on fitting knows how aggravating it can be to get off the grease fitting. This addition is very easy to install and use. Everyone with a grease gun needs one!!!"

Timothy W.

"Excellent. All the years struggling with difficult grease zerts and now the grease goes in the fitting not all over the machine. Awesome solution to get grease to go in the fitting."

Mark A.

RELATED ITEMS

LockNLube® Grease Coupler XL

$39.95

LockNLube Universal Rebuild Kit

$7.85

RELATED ITEMS

LockNLube® Grease Coupler XL

$39.95

LockNLube® Universal Rebuild Kit

$7.85

LOCKNLUBE PRODUCTS INCLUDE A FULL GUARANTEE AND A DEDICATED SUPPORT TEAM.

We offer a lifetime guarantee on the manufacturing of our products and are available to answer any questions you have from our office in New Hampshire. Give us a call at 603-795-2298.