This year marked 50 years of the American Society of Plumbing Engineers (ASPE) Convention and Exposition, and as usual, ASPE was a crowd pleaser, showcasing innovative products for contractors and engineers.  At the booth of our partner, Sloan Valve Company,  the benefits of Waterfree just got better with the introduction of the new patent-pending WES-150 or “Velocity” Cartridge technology.   Read more about the Velocity cartridge debut at ASPE from Contractor Magazine here.