Sierra Shields Bilgeflex Hose 1-1/4" - BlackSierra Shields Bilgeflex Hose is a single layer corrugated polyethylene hose. The hose is resistant to mild chemicals and salt water and there is a clamping cuff every foot.Specifications: I.D.:; 1 1/4" or 31.8mm; Bend Radius: ; 1 1/2" or 38.1mm; Vac Rating: 20; Length: 50' or 15.2m; Application: It is available in black or white; This hose is primarily used for bilge pump discharge; Note: Do not attach to thru hull fitting below the water line.