Infrasco Adjustable Valve Wrench & Curb Box Key

Steel Strength, Aluminum Agility

Adjustable valve wrench T-handle and shaft

Maximize your field agility. Equip your crews with the most advanced curb box key on the market.

Infrasco is redefining field efficiency with its Adjustable Aluminum Valve Wrench, also widely known as a professional-grade Curb Box Key. Engineered by experts for waterworks professionals, it combines extreme durability with a feather-light design to transform your daily maintenance and emergency shut-off operations.

Why the Infrasco Curb Box Key is the superior choice:

  • Revolutionary Lightweight Design: Weighing only 13.2 lbs (6 kg), its ultra-light aluminum structure drastically reduces physical fatigue and prevents back injuries during repetitive use compared to heavy steel alternatives.
  • Strategic Reinforcements: Built for maximum longevity, we have added structural reinforcements at critical stress points, specifically at the T-handle junctions and the telescopic adjustment sections to handle high-torque demands.
  • Telescopic Versatility: Extending from 78 to 146 inches, this versatile tool adapts instantly to any valve or curb box depth and is secured by a heavy-duty safety locking pin.
  • Smart Steel Tip: The durable 2-inch steel tip features debris evacuation channels, ensuring a perfect seat even in curb boxes obstructed by sand or gravel.
Curb box key in use inside a valve box in the ground
Steel socket tip close-up showing debris evacuation cavity

Cavity to evacuate debris

Curb box key fully extended

Extensible from 78 to 146 inches

Operate your valves and curb stops with unmatched precision and ease.