Eliminate the guesswork of filter maintenance with the Pentek 143549 Differential Pressure Gauge. Featuring a convenient 3-color needle design, this gauge provides a clear visual indicator of when your water filter cartridges need replacement. Designed specifically for Pentek and American Plumber 3G MM housings, it installs easily onto the sump cap for reliable monitoring.

• Provides a clear visual indicator of when water filters require replacement
• Features a simple 3-color needle design for easy status monitoring
• Specifically designed for Pentek 3G MM (Meter Mount) filter housing caps
• Required for use with American Plumber and Pentek 3G MM housings due to pre-configured housing holes
• Genuine OEM Pentek product for guaranteed compatibility