GPRO - QM40 Series Modular Mechanical Fuel Meter in Gallons, 2-40 GPM, 1" NPT Quick Fit Modular Flanges (139000-01)








Key features
- •QUICK-FIT MODULAR DESIGN: The new model QM40 series meters now feature 1" NPT Quick Fit Modular flanges designed to bolt directly to the GPI G20 gear pump or the GPRO V25 vane pump.
- •UNCOMPROMISING SAFETY & DURABILITY: This UL and cULus safety rated mechanical fuel meter is made of long-lasting aluminum housing and has a magnetic drive that replaces the driveshaft and seal, eliminating leaks.
- •USER-FRIENDLY: This meter has a simple twist knob reset and features an easy to read, four digit batch total and cumulative total that displays in gallons.
- •AFFORDABLE ACCURACY: Using oval gear technology, this meter translates flow data measuring within a + / - 1/2 % accuracy across a flow range from 2 to 40 GPM or 8 to 150 LPM.
- •MADE IN USA: QM40 meters are designed, manufactured, and supported through our Wichita, Kansas facility.
BrandGPRO
CategoryFlowmeters
GPRO - QM40 Series Modular Mechanical Fuel Meter in Gallons, 2-40 GPM, 1" NPT Quick Fit Modular Flanges (139000-01)
List Price: $538.34$484.51DEALYou Save: $53.83 (10%)
Free shippingFree Returns – 30 daysFree Order CancellationSecure Payment2–3 Days DeliveryGet It June 24, 2026In Stock (4)No marketing spamNo account requiredFulfilment by FedEx / Amazon / UPS / ShipwirePayPal / Card Buyer Protection







