Can anyone confirm the width of the sleeve that holds the jaws? I have a few nipples where access is only 15mm wide

Hello, Thank you for your interest in our product and query. Unfortunately our G.COUPLER has an outsider diameter of 16mm. GURTECH are working on a new generation G.COUPLER with one of the primary objectives being to decrease the OD. The launch is not imminent so you may need to continue to use a conventional push on coupler. Regards, Paul Gurney G-PRODUCTS

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G.Coupler + G.SPARES Kit - The Original Lock-On Zerk Fitting Grease Gun G Coupler (⅛" BSP)

Product ID: 50860318

Details

Brand
GURTECH
Colour
Black Gold
Connector type
Nipple
Item weight
120 Grams
Manufacturer
GURTECH
Material
Alloy Steel

🔧Rebuildable with included G.SPARES kit

🔩690 bar / 10,000 psi max pressure

⚙️Fits all SAE & Metric Zerk fittings

Description

🔧 Lock it, pump it, forget it — the ultimate grease gun upgrade!

LOCK ON HANDS FREE - Securely clamps to Zerk fittings for mess-free lubrication without holding on.
ERGONOMIC EFFICIENT - Eliminates awkward pumping positions, reducing downtime and boosting productivity.
EXTREME PRESSURE READY - Operates reliably up to 690 bar (10,000 psi) for heavy-duty industrial use.
COST SAVING REBUILD KIT - Extend product life with easy-to-replace internal seals using the G.SPARES kit.
UNIVERSAL COMPATIBILITY - Works seamlessly with M10x1, 1/8" BSP, 1/8" NPT threads & all grease gun types.

The G.Coupler + G.SPARES Kit is a patented, heavy-duty lock-on grease coupler designed for industrial machinery lubrication. Compatible with all major grease gun brands and Zerk fittings, it delivers leak-proof, hands-free operation at pressures up to 690 bar (10,000 psi). Its rebuildable design with included spare seals ensures long-term cost efficiency, making it an essential tool for professionals seeking faster, cleaner, and safer maintenance.

Specifications

ASIN	B01K7YJE64
Brand	GURTECH
Colour	Black, Gold, Silver
Connector Type	Nipple
Customer Reviews	4.5 4.5 out of 5 stars (124)
Item Weight	120 Grams
Manufacturer	GURTECH
Material	Alloy Steel, Rubber
Model Number	GC81017SK
Number of Pieces	1
Part Number	GC81017SK
Thread Size	0.125 inch
Thread Type	BSP
Unit Count	1.0 count

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