MAX INLET PRESSURE 140 PSI; SHELF LIFE IS 3 YEARS WHEN STORED IN COOL DRY OZONE FREE AND AND AWAY FOR DIRECT SUNLIGHT; OPERATING TEMPERATURE M50/P120 DEG F; RELIEF VALVE SETTING 110-120 CAN WITHSTAND IMMERSION IN WATER; 0.37-18 NPT INLET AND OUTLET CONNECTIONS