Pall 13 mm Acrodisc syringe filters are available with a standard male slip luer outlet or Pall’s proprietary minispike outlet. The minispike allows for easy handling with a HPLC vial, and offers a reduced hold-up volume, ensuring maximum filtrate recovery. Typical hold-up volumes: 13 mm, male slip luer outlet: < 30 μm 13 mm, minispike: < 14 μm