Shop Differential Pressure Gauges, Filter Indicators, and Backflow Test Kits - Differential Pressure Plus
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These stocked differential pressure gauges only represent a very small portion of the +30,000,000 gauge designs we can build. But, if you need a gauge immediately, or your requirements are met by these standard designs, these gauges can be a great option.

Differential Pressure Plus designs and manufacturers differential pressure gauges and filter indicators. Our main industries are cyrogenic storage for liquid oxygenm nitrogen, and natural gas. Filtration of water, oil, and other gases and liquids. Leak detection systems for large tanks and pipelines. Flow rates on venturis and other flow type devices. We are located in the United States and have been manufacturing since 1991. We also make a like of 4-20mA transmitters and entire line of testing equipment. Our backflow test kits are used to test back flow preventers around the world

Filter Status Indicators

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Precision Differential Gauges

150DPG B copy

Backflow Testing Equipment

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Filter Status Indicators

filterbug

filter BUG

The filterBUG is a great low cost alarm. It can connect to any of our indicators or  gauges with switch.

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DPP175

The DPP175 has been one of our best selling products since its development nearly 20 years ago.

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DPP975

The DPP975’s simple modular design allows the gauge to accommodate many different options.

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DPP750

The DPP750 is an extremely simple indicator that is perfect for any situation notified of high differential pressures.

Differential Pressure Gauges

Our online store has differential pressure gauges that ship within 1-2 days. We offer quantity, distributor, and other discounts if you contact us directly.

150DPG B copy

filterSHIELD

No Logo
Includes Max Indicating Pointer
Includes 3 color Breakdown
Piston Type Design
3,000 PSI Sytem Rating
150DPG A

*can panel mount

2.5″ Dial

$129.99 all versions

10 PSID BUY HERE

30 PSID BUY HERE

40 PSID BUY HERE

50 PSID BUY HERE

60 PSID BUY HERE

150DPG A

*can panel mount

2.5″ Dial

$179.99 all ranges

10 PSID contact us

30 PSID contact us

40 PSID contact us

50PSID contact us

60PSID contact us

200dpg for stocking2

200DPG

Optional Max Indicating Pointer
Optional Mounting Bracket
Piston Type Design
3,000 PSI Sytem Rating
200 dpg 5

*can panel mount

2.5″ Dial  

starts at $124.99

5 PSID BUY HERE

15 PSID BUY HERE

30 PSID BUY HERE

200DPG.40.30#

*not panel mount

4.0″ Dial

 starts at $124.99

5 PSID BUY HERE

15 PSID BUY HERE

30 PSID BUY HERE

200 dpg 5

*can panel mount

2.5″ Dial

starts at $229.99

5 PSID BUY HERE

15 PSID BUY HERE

30 PSID BUY HERE

200DPG.40.30#

*not panel mount

 4.0″ Dial

starts at $229.99

5 PSID BUY HERE

15 PSID BUY HERE

30 PSID BUY HERE

300DGC copyb

300DGC

Optional Mounting Bracket
Diaphragm Type Design
Great for Gases and Advanced Filtration
200DPG.40.30#

*not panel mount

4.0″ Dial

starts at $224.99

100″ H2O BUY HERE

15 PSID BUY HERE

30 PSID BUY HERE

200DPG.40.30#

*not panel mount

4.0″ Dial

starts at $429.99

100″ H2O BUY HERE

15 PSID BUY HERE

30 PSID BUY HERE

Backflow Testing Kits

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TK10

$599.99

Complete Kit

Our original Backflow test gauge we have been making for 10 years. Provides a 3 valve arrangement that accomplishes all 5 valve tests.

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BackflowPRO

$599.99

(gauge, hoses, carry strap only)

The Backflow Pro combines the easy to use valve assembly we developed for our original TK-10 kit with an improved construction and durability.

backflow mini kit

BackflowMINI

$499.99

(gauge, hoses, carry strap only)

The most compact Backflow test kit ever made. Accomplishes all the tests a standard 5 or 3 valve can as a result of our new gauge body design.

Backflow Testing Accessories 

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CarryCase

$49.99

A case to carry the gauge so it never gets lost

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FittingPack

$59.99

A pack of the most widely use fittings.

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BleedValve

$69.99

Used in important backflow procedures.

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SightTube

$69.99

Used for DCVA’s and quick calibration checks.

Backflow Test Kit Bundles

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THE BACKFLOW PRO

GOLD BUNDLE 

$779.99

The Backflow Pro Gold Bundle comes with our Waterproof Clipboard case, a pack of brass fittings for connecting to a variety of preventers, hoses, a carry strap, bleed valve, sight tube, and the gauge.

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THE BACKFLOW PRO

SILVER BUNDLE 

$659.99

The Backflow Pro Silver Bundle comes with our Waterproof Clipboard case, a pack of brass fittings for connecting to a wide variety of preventers, hoses, a carry strap, and the gauge.

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THE BACKFLOW MINI

GOLD BUNDLE

$679.99

The Backflow Mini Gold Bundle comes with our Waterproof case, a pack of brass fittings for connecting to a variety of preventers, hoses, a carry strap, sight tube, bleed valve, and the gauge.

Differential Pressure Plus designs and manufacturers differential pressure gauges and filter indicators. Our main industries are cyrogenic storage for liquid oxygenm nitrogen, and natural gas. Filtration of water, oil, and other gases and liquids. Leak detection systems for large tanks and pipelines. Flow rates on venturis and other flow type devices. We are located in the United States and have been manufacturing since 1991. We also make a like of 4-20mA transmitters and entire line of testing equipment. Our backflow test kits are used to test back flow preventers around the world

THE BACKFLOW MINI

SILVER BUNDLE

$559.99

The Backflow Mini Silver Bundle comes with our Waterproof Clipboard case, a pack of brass fittings for connecting to a wide variety of preventers, hoses, a carry strap, and the gauge.