Check out our most popular backflow test kits!

Backflo Shop is a Mid-West Instrument stocking distributor.

MODEL 835

MID-WEST’S model 835 is a 0-15 psig differential pressure gauge equipped with 5 valves : 1 high pressure valve, 1 low pressure valve, 1 by-pass valve, 1 high pressure bleed valve and 1 low pressure bleed valve. Both bleeding valves are located on the top of the device, making it easier for the tester to operate.

The test kit also comes in a rigid plastic box with 3 hoses and all the necessary adapters needed to connect the hoses to any size backflow preventer’s test cocks. The 835 can also be easily unclipped from the box.

Product specifications – Mid-West MODEL 835

MODEL 845-3

MID-WEST’S model 845-3 is a 0-15 psig differential pressure gauge equipped with 3 valves : 1 high pressure valve, 1 low pressure valve and 1 by-pass valve. All three valves are located on the top of the device.

This test kit is similar to the 845-5 series, except that this gauge does not have any bleeding valves and that bleeding must be done with the by-pass valve.

The test kit comes in a plastic case filled with protective foam with the 3 hoses and all the necessary adapters needed to connect the hoses to any size backflow preventer’s test cocks.

Product specifications – Mid-West MODEL 845-3

MODEL 845-5

MID-WEST’S model 845-5 is a 0-15 psig differential pressure gauge equipped with 5 valves : 1 high pressure valve, 1 low pressure valve, 1 by-pass valve, 1 high pressure bleed valve and 1 low pressure bleed valve. Both bleeding valves are located on the top of the device, making it easier for the tester to operate.

Essentially, this test kit is exactly the same as model 835, except that the 845-5 comes in a plastic case filled with protective foam instead of a box.

The test kit also comes with 3 hoses and all the necessary adapters needed to connect the hoses to any size backflow preventer’s test cocks.

Product specifications – Mid-West MODEL 845-5

MODEL 847

MID-WEST’S model 847 is a 0-15 psig differential pressure gauge equipped with 5 valves : 1 high pressure valve, 1 low pressure valve, 1 by-pass valve, 1 high pressure bleed valve and 1 low pressure bleed valve. Both bleeding valves are located on the top of the device, making it easier for the tester to operate.

This test kit offers a better differential pressure accuracy at ±0.1 PSID (descending) and a easier to read 270° Dial Arc.

The test kit comes in a plastic case filled with protective foam with 3 hoses and all the necessary adapters needed to plug the hoses to any size backflow preventer’s test cocks.

Product specifications – Mid-West MODEL 847

Nous avons accès également à des modèles de différents fabricants, tels que Wilkins, Conbraco, Watts et Flomatic.

Contactez-nous pour vous procurer un manomètre
ou remplissez une demande de soumission.