LockNFlate XL Air Chuck for Large Bore Tire Valves, 250 PSI, 1/4″ NPT – Open Flow

• Secure 6-Jaw Locking Design – Six hardened steel jaws lock firmly onto the valve, creating a hands-free, leak-free connection while inflating.
• Designed for Large Bore Valves – Fits VG12/12V1 large bore Schrader tire valves commonly found on construction, mining, agricultural, and heavy equipment.
• Available in Open & Closed Flow – Choose Open Flow for inflator gauges and automatic systems, or Closed Flow for direct compressor hose connections and multi-hose inflation kits.
• High-Flow 250 PSI Performance – Engineered for fast, efficient inflation of large tires with a maximum working pressure of 250 PSI (17 Bar).
• Heavy-Duty Steel Construction – Built for demanding professional environments with hardened steel components for long-lasting durability.

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Founded in 2013 in Lyme, NH

LockNLube

From the Original LockNLube Grease Coupler to our innovative LockNFlate Air Chuck, LockNLube sells the world's best tools and equipment to make machine maintenance faster, easier, and cleaner. The brand trusted by farmers, mechanics, truckers and heavy-equipment operators, order today!

Upgrade Your Maintenance Tools With LockNLube

LockNLube Grease Gun Coupler

• Rated up to 10,000 PSI
• Easily disconnects, even under pressure. No more broken Zerks.
• 1/8" NPT compatible with all grease guns
• Works on all Zerk fittings, SAE and metric
• US PATENT #8955544

LockNFlate Locking Air Chuck

• Six steel jaws lock onto any Schrader valve to create a secure, hands-free connection.
• 1/4” NPT thread compatible with most standard air hoses
• Hardened steel collet fits all standard Schrader valves [VG8/8V1 valve threads]
• Rated to 150 PSI & Heavy-duty construction built to last
• U.S. PATENT #11913582

LockNLube

Upgrade Your Maintenance Tools With LockNLube

LockNLube was founded in 2013 by farmers and loggers with the simple mission of ending greasing frustration. While our product line has expanded, our focus on providing our customers with innovative, durable, and easy-to-use machine maintenance tools has remained unchanged.

Our tools are built to stand up to heavy use and demands of farming, excavation, logging, trucking, tire shops, service bays, and garages! LockNLube strives to make your machine maintenance work faster, easier, and cleaner.

The Original Locking Grease Coupler

The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.

Grease Coupler Locks on, stays on, won’t leak

The new standard in locking air chucks!

The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.

The LockNFlate Air Chuck