Waterway 9" x 9" Grate & Frame, Square, White | 640-4790 V Filter Connecting Hoses that includes tests for a

that includes tests for a pool and separate spa bromine sanitizer testing (when spa is not a part of the pool circulation system)

Measure your existing full grid end to end (excluding collar) to confirm the 30" length matches before ordering

Prevents scale buildup

The ability to use with both a straight and a curved spa with available treads

Waterway 9" x 9" Grate & Frame, Square, White | 640-4790 V Filter Connecting Hoses that includes tests for aWaterway 9" x 9" swimming pool frame and grate consists of frame, grate and mounting hardware. UL approved. Features and Benefits: Total open area: 43. 6 sq. In Frame size: 10. 375" x 10. 375" Floor flow rate: 240 GPM 3" plumbing Wall flow rate: 208 GPM 3"plumbing Flow rate @ 1. 5 ft sec: 203 GPM