Polypropylene Low Volume Insert for Small Opening Vial Germany-Aijiren 2ml Sample Vials. Polypropylene Low Volume Insert for Small Opening Vial Germany. Vials, Racks, Holders, and Lyophilization Containers. Catalog # Vial Capacity Dia x Hgt Pack Price 7262-0 Poly-Vial, ml 8 x 32mm 0 6.50 Add to Cart 7262-2 Poly-Vial, ml 8 x 32mm 00 57.00 Add to Cart 7262-20 Poly-Vial, 2.5 ml 4 x 3.5mm 0 8.75 Add to Cart 7262-22 Poly-Vial, 2.5 ml 4 x 3.5mm.