TT9901 Specs PowerGuard filters are produced in the USA and leverages proprietary Dual Phase Microglass media to provide high quality filtration performance. Dual Phase Microglass technology offers Beta 1000 efficiencies with a built-in pre-filter to extend your filter life and reduce initial pressure drops. 3000 PSID collapse pressure 50 PSID change out recommended 250°F (121°C) maximum operating temperature Cross reference: Pall HC9901 Filtration Industries: Cement Plant, Aluminum Processing, Bulk Oil and Fuel Conditioning, Diesel Fuel Conditioning, Fluid Reclamation, Gearbox Filtration, Mining, Oil Refinery and Petrochemical, Paper Mills, Phosphate Ester Fluid Solutions, Plastic Injection Molding, Power Generation, Steel Mill, Varnish Solutions, Wind Turbines, Wood Products.