... :CE Materials :AS ,PP and PPFUsage : home used Details :1st ,For pressurization and tightness ,it's better than general screw filter ... with all types strainer element .4th,Larger flow design and less filtration resistance .5th,The processes ,what are highly anti-pressure ... is workable ,pls not worry .2nd ,pls change your PPF for less water yield abnormally when its quantity reaches 10T or normal ...