Access to the thru-hull fitting and seacock beneath the hull strainer is made easy with the patented access door design. No need to remove the entire strainer to clear debris or marine growth. Available in 2 sizes: ASC1250: 7" x 3.38" for 1 1/4" max thru hull ASC2000 10.25" x 4 3/8" for max 2" thru hull.