BAC-FLO-5 Backflow Test Kit
Bac-Flo Unlimited 845-5-0026 Differential Backflow Pressure Gauge


Bac-Flo-5, made in the USA...

$767.00 (incl. 24 Hr. shipping and 1 yr. certification)

Includes industry best 5-year warranty and calibration certificate valid for one full year from date of purchase. Rigid proven gauge body construction not affected by varying water types.  


  • Compare to: $1200.00

  • Total price: $767.00 


Comes fully certified with a full 1-year calibration report (a $70 value free).

Total checkout price: $767.00

Bac-Flo-5 backflow test kit by Bac-Flo Unlimited, Inc., the same reliable and proven gauge used by thousands of students in backflow prevention training courses. Includes gauge, hoses, fittings, case, official USC test procedures and one full year certification report.



The Bac-Flo-5 Backflow Prevention Assembly Test Kit is designed for testing all brands of Reduced Pressure Principle Backflow Prevention Assemblies, Double Check Valve Assemblies, Pressure Type Vacuum Breakers and Spill-Resistant Vacuum Breakers. The Bac-Flo-5 additionally is capable of performing all known testing procedures including those recommended by the Foundation of Cross Connection Control and Hydraulic Research at USC.


  • Maximum working pressure 200 psi

  • Working temperature range 35° F to 150° F

  • Gauge body of engineered thermoplastic material

  • Gauge dial: 4 1/2” diameter, 0-15 P.S.I. scale (75 divisions)

  • 200 psi line pressure gauge dial

  • Accuracy: +/- 0.2 P.S.I.D. (descending)

  • Valves: soft-seated needle with replaceable seats (5 total)

  • Hoses & end fittings: (3) color coded 5' lengths,  (1) 4’ long clear bleed tube, SAE 45° flare fittings, 90 micron cleanable porous metal (brass) filters

  • 5 year warranty against defects in materials and manufacturing

  • Durable padded carrying case with external fitting compartments



  • Case material Molded Plastic

  • Gauge body Thermoplastic

  • Fittings Brass (NPT & SAE)

  • Internals EP Elastomers

  • 316 Stainless Steel

  • Brass

  • Hose Buna Nitrile liner and jacket



The BAC-FLO-5 Backflow Test Kit is subjected to calibration testing conforming to standards traceable to the National Bureau of Standards. It is required that gauges be rechecked for acceptable accuracy tolerances annually. The manufacturer is not liable for shifts in calibration other than those caused by workmanship defects.


  • Reduced Pressure Principle Assembly

  • Double Check Valve Assembly

  • Pressure Vacuum Breaker Assembly

  • Spill-Resistant Vacuum Breaker Assembly


1/4 - 3/4" Brass Test Cock Adapter Set (included)


High side hose, low side hose, bypass hose, high side control needle valve, low side control needle valve, bypass control needle valve, high side bleed needle valve, low side bleed needle valve, bleed hose, in-line tube filtersy

The Backflow Prevention Test Kit shall be a 5 valve pressure differential type. The test kit shall comprise of a 4 1/2” dial set in a thermoplastic housing with a 0 to 15 P.S.I. scale (0.2 P.S.I.D. Increments) and an accuracy of +/- 0.2 P.S.I.D. (Descending). The test kit shall incorporate 5 color coded resilient seated needle valves with SAE flare fittings and 3 color coded pressure hoses (5 ft. lengths). The test kit shall include a hard plastic case, calibration certificate and a laminated instruction sheet. The Backflow Prevention Test Kit shall be precisely manufactured to meet all detailed specifications.

          Compare: $1200.00

  • Your total price:  $767.00 (5-year war. & shipping incl.)

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Testers who 'SPEAK BACKFLOW'®...



Secure gauge shipping address: Bac-Flo Unlimited, Inc., 215 West Bandera Rd, Suite 114, Box 455, Boerne, TX 78006. A 2-3 day turnaround time is usual for getting it shipped back to you. It's an easy way to get your gauge certified for its yearly accuracy check.

Include $100 check or money order per gauge ($75 certification fee and $25 for return shipping) or pay here by credit card. Include with gauge the company name, address, phone number and return shipping address.

Our gauge testing/certification service is performed only by Troy Baird. He is Bac-Flo Unlimited's employee with over 16 years experience in testing and certifying gauges. If there are any concerns about your gauge Troy will be contacting you personally.  

Differential pressure gauges are required to be tested for accuracy when purchased and annually thereafter by most jurisdictions. This service verifies gauge accuracy to plus or minus .2 psid in accordance with N.I.S.T. national standards. Upon precise verification a detailed certification report is provided in reference to the gauge serial number and testing company. For additional information about gauge certifications feel free to contact us by phone or email.


Bac-Flo Unlimited: "Don't Settle for Less!"

*Free Gauge Certifications - One free gauge certification and report is available to each enrolled student in a continuing education course.  This service is offered at no charge at the time of the course. Note: gauge testing is not part of course instruction, though Bac-Flo Unlimited can offer this service due to the advantage of having two instructors on site.

*Free Troubleshooting Assistance - After completing the 40 hr. tester or 24 hr. renewal course, backflow prevention assembly testers can contact one of our instructors for in-field assistance in the troubleshooting and repair of backflow prevention assemblies. In most instances they can help solve your problem over the phone.

*Two Instructors - This is beneficial in the hands-on training for backflow prevention assembly testers. It enables the student the opportunity to have personal one-on-one training with an instructor.

*National ABPA Tester Certification - This certification is useful for testers who plan to test backflow prevention assemblies outside of Texas. The course and training material are the same as for the standard state certification, with the exception of the written exam and final certification coming from the American Backflow Prevention Association. Add $150 to the price of the 40 hr. tester course for national tester certification.

*TCEQ Training Credits - Texas Commission on Environmental Quality (TCEQ) training credits are provided with all courses for Backflow Prevention Assembly Testers and for other water licenses also when attending the 40 Hr. Tester or 8 Hr. Fundamental Course. Additionally CEUs are provided by the Texas State Board of Plumbing Examiners for credit toward obtaining a Plumbing Inspector's License.

*Best Hands-on Training - Our backflow assembly testing stations are individually mounted and spread out in courses with available seating for students. Assemblies consist of all four types and are interchangeable by the students themselves. This results in an optimized learning environment with a relaxed atmosphere and the opportunity for one-on-one training with an instructor.

*Learn from Experience - Courses are taught by experienced instructors in the areas of enforcement, testing, troubleshooting and repairing backflow prevention assemblies. You will learn first hand the dos and don'ts. Cross connection control and backflow prevention is our primary focus with course instructors that have taught backflow courses longer than anyone in the central part of the United States.