Robinair's No. 19776 A/C Replacement Recycling Filter Drier is a genuine Robinair replacement part that features OE fit, form, and function to ensure ease of installation and proper performance. Specially blended materials promote maximum acid and moisture removal. For use with Robinair Nos. 17800B Multiple Refrigerant Recovery, Recycling, and Recharging Machine. Sold individually. Robinair, a Bosch Automotive Service Solutions brand, is a global leader in service tools and equipment based in Owatonna, Minnesota. Robinair is recognized throughout the world as the quality and performance leader in AC/R evacuation tools and this position has led to its success with the full range of products that serve the heating/ventilating/air conditioning/refrigeration (HVAC-R) and mobile markets.