1-1/8" Barbed In-Line Check Valve with O-Rings for Auto Ballast SystemControl the flow of water in an integrated wakeboard ballast system with this 1 1/8" in-line check valve.Designed for use in automated ballast systems, this 1 1/8" check-valve features barbed ends for easy installation into 1 1/8" wakeboard ballast hose. Flow through design reduces restriction so you can spend more time wakeboarding, and less time filling ballast bags.*Sold as an Individual WARNING: This product can expose you to chemicals including Diisononyl Phthalate (DINP) which is known to the State of California to cause cancer. For more information go to P65Warnings.ca.gov. Specifications: Type: Fittings & Hoses Box Dimensions: 3"H x 3"W x 5"L WT: 0.3 lbs UPC: 817177021581 Brochure (pdf)