Pentair 1/4" NPT 2" 0-60 PSI Back Mount Pressure Gauge

The Pentair 1/4" NPT 2" 0–60 PSI Back Mount Pressure Gauge (frequently designated by OEM parts like #190059, #522996, or #33600-0023TZ) is a vital diagnostic instrument used across a vast cross-section of Pentair and Sta-Rite pool and spa filtration systems. This includes the FNS Plus D.E., Clean & Clear, System 3 Modular Media, Triton II, and Cristal-Flo series.

Featuring a clear, 2-inch diameter display face and a 0 to 60 PSI measurement range, this analog gauge reads the internal hydraulic pressure of the filter vessel. Its defining feature is the 1/4-inch National Pipe Taper (NPT) male brass connection extending directly out from the back (rear) of the housing rather than the bottom, allowing it to screw cleanly into the face of multi-port backwash valves, air relief manifolds, or specialized tank recesses. Many factory variations also feature an adjustable external bezel with "Start" and "Clean" indicator arrows, giving pool owners a clear visual benchmark of when baseline operational pressure has risen 8 to 10 PSI—signaling that it's time to backwash or rinse the filter elements.

Weight Profile

Because it combines a lightweight, weather-resistant plastic housing with small brass internal movement gears and a rear thread stem, its physical weight profile is highly compact:

• Actual Product Weight: Approximately 0.18 to 0.20 pounds (roughly 2.88 to 3.2 ounces).

• Packaged Shipping Weight: Typically scales around 0.30 to 0.50 pounds due to the protective small box and bubble cushioning required to keep the clear plastic viewing face from scratching or cracking during transit.