Marshall shock-proof gauges have rugged construction and are liquid filled for vibration dampening. No mounting hardware is included. Read instructions before installing.

Marshall shock-proof pressure gauges have rugged construction and are liquid filled for vibration dampening. Read instructions carefully before installing. IMPORTANT: Ensure accurate readings by venting the gauge. Install gauge so that the nipple plug is facing up. Once installed, cut the nipple on...

Marshall shock-proof pressure gauges have rugged construction and are liquid filled for vibration dampening. Instructions: Use wrench on HEX to tighten/loosen. DO NOT tighten/loosen by turning gauge case. Damage to the gauge may occur and warranty will be VOID. Use thread sealant and test connection...

Marshall shock-proof pressure gauges have rugged construction and are liquid filled for vibration dampening. Getting an Accurate Reading When Gauge Heats Up: You should vent or cool a liquid filled 0-15 psi gauge when it gets hot to ensure an accurate reading. To cool: wrap the gauge case with a wet...