ZAP Aerosol Filter Pipet Tip. Fits Most Popular 10 µL Pipettors. Sterile. Patented robotically inserted endotoxin free filter. Protease, Human DNA, ATP, RNase/DNase and Endotoxin Free (non-pyrogenic). Polypropylene USP Class VI resin. Validated Sterilization (ISO 11137) for use in Research and Medical labs. This product has been independently audited for the Accountability, Consistency, and Transparency (ACT) Environmental Impact Factor label for laboratory products. Refillable autoclavable Purple color racks. 96 tips/rack. 12 racks/pack. 31.4 mm H. Made in USA.