ZAP Aerosol Filter Pipet Tip. Extra Long. 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. Refillable autoclavable racks. 96 tips/rack. 10 racks/pack. 47.6 mm H. This product has been independently audited for the Accountability, Consistency, and Transparency (ACT) Environmental Impact Factor label for laboratory products. Made in USA.