Designed to Give Excellent Service for: Submersible Bilge Pump, Remote Bilge Pump, Hand Bilge Pump, Livewell Inlet, Livewell Drain Above Water Line, Livewell Drain Below Water Line I.D.: 3/4" or 19.1mm; Bend Radius: 3" or 76.2mm; VAC Rating: 28 Not for use with potable water Hose should not be used with any ethylene glycol based antifreeze Rated for full vacuum