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All Categories > Retail & Mobile Motor Fuel Provers & Calibration Systems > Low Profile Side Access Calibration Trailer  
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Low Profile Side Access Calibration Trailer

The trailers are equipped with (3) S/S 5-Gallon bottom drain VRP® provers each individually plumbed to (3) 110 -gallon transfer tanks. Service professionals are able to test 3 grades of gasoline for a total of 66 tests with the 5-gallon provers prior to returning to the fuel stations storage tank for dumping. Side vent provides additional protection from vapors. The trailer is available with optional on board pump-off system and hose reel.

Specifications  · Options



API Manual of Petroleum Measurement Standards Chapter 4
Measurement Canada

NIST Handbook 105-3

OIML R-120

Added Features

  • Thermowells for temperature compensation in all provers
  • (2) 8 ft flexible discharge hoses with aluminum holders
  • Low Profile provides easy access to meters with short hoses
  • Side Access puts you closer to Gasoline Pumps

Easy Leveling

  • (3) VRP® Provers have an all Stainless Steel Ball Joints with a PTFE Glass Seal for durability and easily level each prover individually


  • Run 22 tests for Regular Gasoline plus
  • Run 22 tests for Unleaded Gasoline plus
  • Run 22 tests for Premium Gasoline or
  • Run 6 (50 Gallon) High Speed Diesel with optional 50 gallon prover

Seraphin® Quality Provers

  • (3) 5-Gallon VRP® S/S Provers .(Patent Pending)
  • Provers are built to conform with NIST Handbook 105-3 OIML R-120, Measurement Canada and API Manual of Petroleum Measurement Standards Chapter 4

Trailer Height
(from ground to the top of Prover)

85 in

Prover Capacity

50 gal

Discharge Hose Length

8 ft

Holder Material


Tank Capacity

110 gal

Ball Joint Material

Stainless Steel

  • Pump Off System with Hose Reel
  • 50, 60 or 100 Gallon Series J on top of tanks with railings
  • Special J lockable cover