The Hayward ECX27091 Pressure Gauge is an essential instrument for monitoring pressure levels in pool filtration systems. This gauge, with a 1/4-inch rear mount, is specifically designed to offer precise pressure readings throughout a pressure range of 0 to 60 PSI. It measures the pressure of the water flowing through the filtration system, allowing users to monitor the system's effec... https://www.usapoolshop.com/ecx27091-hayward-pressure-gauge-back-mount