15% off Product Description Shields Vinylvent Ducting Hose is PVC supported by anodized wire helix. It is resistant to UV and the ozone. This hose is primarily used for venting of bilge fumes. Sierra 116-402-4000 Black 4" x 50' Hose at OMCgear $29.74$34.99 15% Discount You save $5.25 Buy Now Check Price on Amazon Check Price on eBay