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Continue to Chat1000ul Filter Tips; Extra-long; Low retention; rack pack; sterile; DNase & RNase free; pyrogen free .length:102mm; 96 Pieces per Rack; 50 Racks per Case. https://www.7bioscience.com/de/shop/details/p/1000ul-filter-tips-extra-long-low-retention-rack-pack-sterile-dnase-rnase-free-pyrogen-free-length-102mm-96-pieces-rack-50-racks-case/BLX-23-1001S