Ideal for filtration of gas and/or organic solvents. Prevents spurious peaks on chromatograms for accurate experimental results. HPLC certified for low levels of UV absorbing extractables. Prevents "air bubble" lock when filling sample vials with 13 mm minispike outlet. 4 mm device offers the lowest sample holdup (< 10 μL) and is useful for samples up to 2 mL in volume. Acrodisc syringe filters with PTFE membrane provide exceptional chemical and temperature compatibility.