The KwiKool 18-FILTERPRE is the OEM pre-filter for the KBP1800 and KBX1800 BioAir 1800 CFM air scrubbers. Like the 14-FILTERPRE for the smaller models, it captures large particles upstream of the main HEPA filter to extend its service life. The 18-FILTERPRE is sized for the larger filter frame on the 1800 CFM models and is not interchangeable with the 14-FILTERPRE used on the 600 and 1000 CFM units.
- Compatible models: KBP1800, KBX1800
- Function: Pre-filter — extends life of 18-FILTERBIO HEPA filter
- Not compatible with: KBP600, KBP1000, KBX600, KBX1000 (use 14-FILTERPRE for those)
