GROCO Bronze Clam Shell Style Hull Strainer w/Mount Ring f/Up To 2-1/2" Thru Hull [SC-2500] Marine Navigation & Instruments | AIS Systems because they even work as

because they even work as replacements in competitive bases

Micro-bubble diffuser

Rule In-Line Blower - 4" Ducting

Ergonomic pump handle for ease of use

GROCO Bronze Clam Shell Style Hull Strainer w/Mount Ring f/Up To 2-1/2" Thru Hull [SC-2500] Marine Navigation & Instruments | AIS Systems because they even work asBronze Clam Shell Style Hull Strainer w Mount Ring f Up To 2 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: 2 1 2" Perf Dia: Cast Slots Specifications: Construction: Bronze Box Dimensions: 2"H x 7"W x 9"L WT: 2. 95 lbs UPC: 742985063563