1 1/2 INCH BSP TruDesign Trudesign Manual Ball Valve. Categories:, Outdoors & Camping, Camping & Fishing. 400,000+ Happy Customers. We’ve Been Featured In. Glass reinforced nylon composite ball valve for high strength, stiffness and light weight. Immune to corrosion and electrolysis for long service life. Chemical resistant – Impervious to diesel, petrol and antifouling paints…. (read more)