Robinair's No. TIFZX-14 Refrigerant Detector Maintenance Kit includes 1ea. filter, o-ring, and tip. Designed for use on Robinair TIFZX Heated Pentode Refrigerant Detectors. Kit features genuine Robinair replacement components with exact OE performance. Rugged, non-marking plastic construction. 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, which includes the automotive aftermarket along with other industries such as agriculture and construction.