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 DPP175 has been one of our best selling products since its development nearly 20 years ago. It uses the same 1.75″ bolt pattern as the DPP975 indicator and serves as a lower cost option for manufacturers. The indicator comes in a variety of different pressure ranges and uses a simple two color “pop” style visualizer to show when a filter needs cleaning.

SKU: DPP175 Category: Tag:

Two Color Filter Indicator

Additional Information
Mounting Base

Yes, No

Pressure range

10, 20, 30