This is a Pentair 33600-0023T Pressure Gauge (0-60 psi) for Cristal-Flo T-BP Series High-Rate Sand Filters and the Sta-Rite System:3 Modular Media SM Series Cartridge Filters. It is 1/4 inch back mounted.
This item is used with the Cristal-Flo T-BP Series High-Rate Sand Filters; the Sta-Rite System:3 Modular Media SM Series Cartridge Filters Models: S7M120, S7M400, S8M150, S8M500; Sta-Rite DEPB Vertical D.E. Filters Models DEPB36, DEPB36-1, DEPB36-IN, DEPB51, DEPB51-IN, DEPB83, DEPB83-1, DEPB83-1; and Sta-Rite System:3 SD Series D.E. Filters Models S7D75 and S8D110.