Patented high-effective flush technology, rotate the bottom part clockwise to discharge the large particles off outfall.

Siphon cleaning technology is performed by liner matrix suckers, rotate the bottom part anti-clockwise to enhance siphon effect, clean out the particles trapped in screen holes.

Upgraded both-sides scrape cleaning technology, make the rubber strip closer to outer surface of screen and inner surface of housing, clean filter thoroughly with simple clockwise and anticlockwise rotation.