Denville pipette pipet variable volume 200ul ul 20 XL 3000i

Used working Denville model XL 3000i pipette variable volume: 20-200ul. with tip ejector. The rotating rubber ring is missing but it doesn't influence overall performance. 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 gar2ndrexbox