Our Peak Ultra-Clear Hybrid Tips are non-filtered, racked and sterile. They are the latest in low retention polymer technology and have an added fine point at the dispensing orifice, which will minimize inaccuracies caused by surface adhesion and droplet retention. The 1000 uL size are longer (1,250 uL) and more finely tapered compared to traditional tips, allowing them to reach the bottoms of 12 x 75 mm Culture Tubes, 0.5 mL Tubes and even 0.2 mL PCR Tubes. Their universal fit sealing ring design forms a superior seal on a wide range of pipette brands, including hard-to-fit P-20 Pipettes. All sizes are clear and metal free.