Thermo Scientific ClipTip 1250 Reload Sterile Low Retention Thermo Scientific ClipTip pipet tips provide security with a unique and innovative interlocking technology that ensures a complete seal on every channel with minimal tip attachment and ejection force ClipTip pipet tips feature a hydrophobic inner surface which effectively prevent liquid retention. All ClipTip tips are certified free of RNase, DNase, DNA, ATP, and pyrogen contamination. The tips are available in multiple packaging options, including environmentally friendly reloads. ClipTip 1250 pipet tips are suitable for pipetting 15 - 1250 uL volumes with the E1-ClipTip electronic pipettors.