sp 0.0 wc thur 0.8 wc will give 1060 cfm low
sp 0.0 wc thur 0.8 wc will give 1105 cfm medium low
sp 0.0 wc thur 0.8 wc will give 1260 cfm medium high
sp 0.0 wc thur 0.8 wc will give 1330 cfm high