- 3rd-party tested to ICC 500 and FEMA 2014 P-361 for tornado 250+ mph impact
- meets ANSI standards for size and GPM discharge
- CRD models available in 4″, 6″, or 10″ sizes for poured in place or precast.
- overflow capabilities in COFRD models
- dome shaped to dampen shock to roof drain
- steel or polymer body & dome