This dome-shaped aerator strainer offers effective protection for pumps against water debris. Its fully curved and perforated surface ensures efficient water flow, surpassing other molded filters. The filter top easily twists and locks onto the base under the thru-hull flange. With a two-piece design, it's simple to clean and install without fasteners. Mounts onto aerator pump snout or thru-hull fitting, and can also function as a screen for overflow drains. Measures approximately 2 3/4" in diameter and 1" in height overall, featuring (2) 3/16" diameter mounting holes. Compatible with approximately 3/4" diameter thru-hull, intake, or outlet.