10ml ND18 Headspace Screw Vial (amber), 46 x 22.5mm, rounded bottom, pk.100 (old part number 18091310) 20ml ND20 Headspace Crimp Vial (clear), 75.5 x 22.5mm, rounded bottom, pk.100. 20ml ND20 Headspace Crimp Vial (amber), 75.5 x 22.5mm, rounded bottom, pk.100. Part Number: 180410-B. Part Number: 200420-CTC.