Perko - Scoop Strainer - Bronze - 8" x 5-1/8" - MADE IN THE USA - 0066DP4PLB. Cast bronze. Machine slots. Technical Information:. For Thru-Hull Size - 3/8" & 1/2". Dimensions Strainer - 3-1/2" X 2-1/2". Model Number - 0066DP1PLB. Ship Weight - 2.0/1.8 lbs.. Screw Size - #8