Reversible strainers are designed for filtration of single cells and isolation of cellular aggregates. They are available in 3 mesh sizes: 37 μm (white), 70 μm (orange), and 100 μm (grey). Single cells and objects smaller than the mesh will pass through the strainer and can be collected; larger aggregates will be trapped on the strainer and can be recovered separately. Strainers can be stacked for more precise size selection. Reversible strainers can be used for harvesting embryoid bodies (EBs) and spheroids from AggreWell™ plates (e.g. Catalog #34811). Other applications include isolation of single cells, e.g. after tissue dissociation or prior to flow cytometry. The small strainers (Catalog #27215/27216/27217) are compatible with 14 - 15 mL conical tubes (e.g. Catalog #38009) and 3 - 5 mL round-bottom tubes (e.g. Catalog #38007); the large strainers (Catalog #27250/27260/27270) are compatible with 50 mL conical tubes (e.g. Catalog #38010).