Overflow swimming pool grill triple interface can turn overflow grille, grille can turn three of the main grid connection port role on both sides of the mouth than the middle link connection port 10mm, the curvature of the overflow tank encounters when this grill is the best choice. Eurasian three interfaces can turn the pool overflow box or prismatic convex grille panel design, effective non-slip high. This product is 100% non-toxic and tasteless with ABS new material, has a very excellent acid and alkali resistance to organic solvents and salts, and many other gas, corrosion liquid medium. A one-time injection molding technology, rugged and high toughness, ABS plastic material and add UV UV material, further increasing the resilience and promotion materials withstand temperature, UV, moisture and chemical corrosion ability. With the overflow tank with the curvature, this grill is the best choice. Products sold in major cities, such as: Beijing, Tianjin, Shijiazhuang, Harbin, Changchun, Shenyang, Shanghai, Chengdu, Wuhan, Kunming, Guangzhou and other places.