VWR Single-Channel Digital Microdispensers Variable Volume Microdispensers. A unique dual-calibration system provides an accuracy and reproducibility of better than 1percent. Capillary bores are made of glass except for the 1001000 L volume and 1000 L volume models which are made of precision-molded plastic. Users can set whole or fractional microliter volumes. A cutout in the barrel of the unit permits a visual check for proper insertion of the capillary bore. A calibration mark on each bore allows for a visual check for complete delivery and a color-coded mark on the bore lines up with the stainless steel plunger when the dispenser is set at full capacity. Specifications for VWR Single-Channel Digital Microdispensers Variable Volume 3-033-575 Microdispensers : Volume L: 20 100 Color: Blue Increments L: 0.1 (Please note that the description and stock photo may not correspond to the specific model listed above) We offer only genuine Drummond products authorized for sale in the U.S. and other markets so you can be sure that you are buying authentic Pipets & Liquid Handling with a full manufacturer's warranty in addition to our own 100percent Satisfaction Guarantee. We are your premier online distributor for VWR Pipets & Liquid Handling. We are an authorized supplier to all federal and state government agencies as well as to research and educational institutions and can facilitate volume orders on many types of laboratory equipment lab consumables and other products to help fulfill your specific needs. We offer Free Shipping and FREE USPS shipping to APO and FPO addresses on all orders in our store over 49. Please refer to our APO/FPO Shipping and Export Restrictions for more information on export to APO/FPO addresses. In addition to the VWR Single-Channel Digital Microdispensers Variable Volume Microdispensers 3-033-575/ 53506-201 we carry a full complement of Pipets & Liquid Handling as well as other product offerings from Drummond. We also carry a full line of VWR accessories to help meet your laboratory and scientific needs. For a complete selection of VWR Pipets & Liquid Handling please visit our Drummond page. For more brand name Pipets & Liquid Handling please visit our Pipets & Liquid Handling store section. To see our complete line of lab medical industrial and scientific products please see our science and lab equipment online catalog. VWR Single-Channel Digital Microdispensers Variable Volume 3-033-575 Microdispensers