Great for minimizing the risk of over inflation and making sure you get maximum performance by having enough air in your Water Master. We recommend 2.5 PSI in each chamber. Includes adapter to fit all Haulkey Roberts valve styles.


SKU: WM-031. Category: .

Product Description

The NRS Mechanical Pressure Gauge helps you minimize the risk when inflating your boat and monitoring air pressure. This simple tool can save you a ton of headache and expense.

  • This easy to read, accurate gauge helps you keep your boat inflated to the optimal pressure.
  • Avoid costly blowouts by regularly checking your raft, cataraft, inflatable kayak, SUP board’s air pressure to prevent over-inflation.
  • The 0-20 psi capacity covers the widest range of inflatable craft.
  • Gauge fits Leafield and military-style valves.
  • Screw in gauge tip adjusts for best valve plunger depression.
  • Gauge tip must be in the valve for reading.



  • 0 – 20 psi dial display
  • Gauge tip fits C7, B7, & A7 valves, also military valves

Additional Information

Weight .2 lbs
Dimensions 4 x 2 x 2 in