 | ec-i | exhaust only |
 | ec-i-fp1 | exhaust & supply | front plenum (perforated) |
 | ec-i-fr1 | exhaust & supply | front plenum (registers) |
 | ec-i-rs | exhaust & supply | rear plenum |
 | fsp-i | exhaust & supply | front perforated |
 | fsr-i | exhaust & supply | front registers |
 | scs-i | exhaust & supply | internal slot |
 | scr-i | exhaust & supply | internal registers |
 | scs-fr-i | exhaust & supply | internal slot & front registers |
 | acr-i | exhaust & supply | air curtain discharge |