The series prodect were mainly used on the water exchange syetem of all kinds of water recreation facilities, and developed specially for quick water exchange and safety insurance, which has epoch-making significance.

With using PVC material, the products are strong, durable, aesthetic and nin-skid.

Normally the product color is white or black.

For the sizes, the sump+grate have 9" × 9", 12" × 12", 18" × 18", 18" × 36"and 6"round; The grate+frame have 9" × 9", 12" × 12", 18" × 18", 18" × 36" and 24" × 24". In all of this, 18"domed grate mlod and prodect were awarded with the Industrial Manufacturing of 2009, due to its'great difficulties.