Powerfully and precisely washes ALL breast pump parts, including flanges, shields, collection cups, valves/membranes and storage bottles Fits pump parts from ALL types of breast pumps from any brand, including wearable pumps Two powerful spray arms with 21 high-pressure spray jets ...Powerfully and precisely washes ALL breast pump parts, including flanges, shields, collection cups, valves/membranes and storage bottles Fits pump parts from ALL types of breast pumps from any brand, including wearable pumps Two powerful spray arms with 21 high-pressure spray jets ensure thorough cleaning inside and out Full replacement rack system includes top rack, bottom rack and connecting tubes; Use in place of existing rack system that comes with the Baby Brezza Bottle Washer Pro Top rack fits up to 7 larger valves/membranes and features a basket for smaller valves/membranes; Bottom rack holds up to 4 flanges, shields, collection cups and storage bottles For optimal performance, ensure parts on the top rack are spread out evenly so the spray arm can effectively spin and clean