T-H Marine Aerator Filter Dome 1" Hole ID Fits 3/4" Thru-Hull or Pump

Protects your aerator pump from debris in the water. Two piece filter mounts easily without fasteners by placing the base under a thru hull flange or aerator pump snout. Simply twist/locks on for easy installation or cleaning. Works well as a screen for overflow drains. Mounts behind standard thru-hulls. For 3/4" thru-hull or pump.