Costar pipette pipet variable volume 200 ul 20 set calibrated pipettor

Used working set of two Costar pipettes variable volumes. with tip ejectors the pipets are:- 20-200 ul and 2-20 ul. Cabrated July 2012. I have measured the aliquotes on mettler scale and found all this pipets in a good working order. If you are not satisfied. you can return the product within 14 days for a full refund excluding shipping expenses. Lot gar2ndfedexbox