Adopting a standard ANSI/SLAS footprint, an extended range of reagent reservoirs (100 mL and 300 mL) is available. The reservoirs are compatible with most liquid-handling systems including Viaflo 96 and Viaflo 384 handheld multichannel electronic pipettes. Individual pyramidal indentations (96 or 384) in each reagent reservoir allow liquid recovery when using the Viaflo 96 and Viaflo 384 electronic pipettes as well as other platforms. Users can reuse the reservoir base and dispose of the reservoir inserts. These reagent reservoirs are also designed to nest within one another without sticking and come in compact packages.