Neenah R-4990-CX-A Heavy Duty Cast Iron 12" x 24" x 1.5" Grate heel safe Provides excellent chemical resistance and

Provides excellent chemical resistance and durability not recommended for use with POLYCAST® 500 system as it will partially block flow within the channel

Flow rate is 22 Gallons Per Minute

paver patios and slab patios

For example

Neenah R-4990-CX-A Heavy Duty Cast Iron 12" x 24" x 1.5" Grate heel safe Provides excellent chemical resistance andR 4990 CX A grate from Neenah Foundry is a heavy duty slotted cast iron trench drain grate measuring 12" x 24" x 1. 5" (Type A). Designed for commercial and industrial applications, this robust grate ensures reliable water flow, durability, and long lasting performance. Please note that all raw cast iron grates begin to naturally rust with exposure to any form of moisture and will appear bright orange before settling to brown. Large project? Request a