The First High-Quality, Inexpensive Direct Reading Differential Pressure Indicator

In 1966, Gammon Technical Products introduced the Gammon Gauge, which quickly became the world’s #1 aviation fuel filter differential pressure gauge. In 2017, we are pleased to introduce the new, patented, smaller gauge, made to the same unparalleled quality standards.

Calibration is simple and does not require a gauge laboratory. Use GTP-2305 or any three-way valve. Our test procedure is accepted by the USAF, Army, Navy, and all major oil companies and airlines in the world as all you need to do to check the accuracy of the Gammon type DP indicator.

• 100% made in the USA
• Aluminum and stainless steel construction
• 0-30 psi design range
• 0-450 psi operating pressure
• Built in, cleanable filter
• Ultraviolet protected
• Viton GLT seals good -40° to +130°F
• Available in psi, bar, kPa, and kg/cm² scales
• Accurate ±0.75 psi at any pressure
• Versions available that meet EI-1587 and industrial specifications

How to Order