This Slide Valve is manufactured by Valterra. Since 1981, Valterra Products, has been a leading supplier of brand name product lines to the RV, pool & spa, and plumbing industries. Valterra acquired the Blue Devil Pool & Spa Accessories line in 2002 which expanded the pool & spa assortment beyond plumbing to a full line of Blue Devil maintenance accessories. The line specializes in pool water test kits, reagents, valves, vacuums, brushes, nets, and poles for use by consumers and pool service professionals.