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Here at Acugauge we have a very simple philosophy - to provide backflow testers with only the highest quality test gauge and backflow supply, backflow preventer test kit gauges and gauge calibration services. We back this up by offering you the only 30-Day Money Back Guarantee and 90-Day Exchange Guarantee in the business. In addition to our own brand, we also feature Watts TK-9A and Midwest 845-5 backflow test kits at below factory prices. 


Mid-West® Brand 845 (3 Valve)

Mid-West® Backflow Prevention Assembly Test Kit "MODEL 845-3"

The 845-3 is in the list of Acceptable gages from both FCCC & HR-USC and CA-NV AWWA


Functions and Applications:
Model 845-3 (3) valve kit provides the capability for testing all brands of reduced pressure principle, pressure vacuum breaker and double check valve backflow prevention assemblies.

∆P RANGE: 0-15 PSID / 0-100 KPA

Product Features/Benefits

    • Over 30 Years of Input from Backflow Technicians
    • (3) Valve Test Kit
    • Specially Designed for Testing Backflow Prevention Assemblies
    • Soft-Seated Brass Needle Valves (with replaceable valve seats)
    • Test kit is protected with 90 micron filters to minimize plugging with scale, sand, etc. Filter elements can be cleaned or replaced
    • Portable / Removable from Case
    • Durable Molded Plastic Carrying Case
    • Improved Case with Storage Compartments for Fittings & Tools
    • Test Procedures are Laminated in Clear Plastic
    • 5 Year Warranty


  • Gauge Type Diaphragm Differential Pressure
  • Dial Size & Range (4-1/2") 0-15 PSID / 0-100 KPA
  • Differential Pressure Accuracy ± .2 P.S.I.D. (Descending)
  • Working Pressure: 200 PSIG
  • Body Material: Glass Reinforced Engineering Thermoplastic.
  • Wetted Internals: EP Elastomers, Brass and 316 S.S. Metal Parts
  • Line Pressure Gauge: 1-1/2 0-200 PSIG
  • Hoses & End Fittings: Buna-N jacket and liner. Schrader 1/4" brass coupler -
  • Hose Length: Three (3) each / 5' long (color-coded).
  • Adaptor Fittings: (3) sets of brass fittings provided for hookup to all standard size test cocks
  • Gauge Weight: 3.3lbs / 1.5kg
  • Case: Durable Molded Plastic
  • Size: 18-1/2"L x 9"W x 9-3/4"H
  • Temperature Limitations: Maximum 150°F/65°C


It is capable of performing all known test procedures including those recommended by ASSE, AWWA, CSA, FCCC and HR-USC and NEWWA.

Buy Now!

Price: $850.00
Free Ground Shipping:
5-Year Parts & Labor Warranty:

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