9 x 9 & 12 x 12 Grate & Frame

Specifications:

– Total Open Area: 43.6 sq. in.

– Frame Size: 10.375″ x 10.375″.

– Floor Flow Rate: 289 GPM @ 2.33 ft/sec.

– Wall Flow Rate: 208 GPM @ 1.59 ft/sec.

– Flow Rate @ 1.5 ft/sec: 203 GPM.