Additional Details ------------------------------ Product description: Carbon Block Filter 4.5" x 10"Minimum Operating Temp 40 FMaximum Operating Temp 125 FMinimum Operating Pressure 20 psiMaximum Operating Pressure 250 psi (normally depends on maximum of housing)Maximum Differential Pressure 100 psiCollapse Pressure 200 psiThe filter media is made from processed coconut shells. Manufacture is in India, near the source.Performance claims are based on a independent laboratory and manufacturer's internal test data. Actual performance is dependent on influent water quality, flow rates, system design and application. Results may vary. This filter must be placed in an appropriate system, and operated according to the system specifications in order to deliver the claimed performance. Replacement for 32-450-10-GREEN and 32-425-125-975