Industrial RA1661 Rotary Air Separator Filter is a genuine OEM replacement part for the RotaryAire RA1661 air-oil separator used in rotary screw compressors. It functions as an air/oil separator element, removing oil aerosols from compressed air to protect downstream equipment and maintain air quality. Verified RA1661-compatible replacements include Fluitek FLK16-12188 (Air/Oil Separator) and Beta 1 Filters B1AS0001077, both marketed as RA1661 replacements.
