... PPFUsage : home used Details :1st ,For pressurization and tightness ,it's better than general screw filter housing bcz of latest thread ... Larger flow design and less filtration resistance .5th,The processes ,what are highly anti-pressure body ,ribs thicked injected and wide-angle ... C).7th ,Its usage is effected by installation and house's desigh ,and unavailable to filter plant and animal cells , ...