Bronze Clam Shell Style Hull Strainer w/Mount Ring f/Up To 1-1/2" Thru Hull Features:. Mount ring design allows easy access to Thru Hulls.. C84400 bronze body and door.. Cast filter slots.. Pressure relief holes in door casting.. Specifications:. Flow Type: STD. Mount Ring Incl: YES. Max T-Hull: 1-1/2". Perf Dia: Cast Slots