SolVac Filter Holder Filters up to 4L mobile phase solvent. Polypropylene. Magnetic seal. Accepts 47mm filter. Filtration area: 10.2cm2. Maximum vacuum: 6.35mmHg. Port adapter: 6.3-7.9mm tapered barb hose. With 0.6m feedline tubing thumb clamp sinker vacuum port adapter seal gaskets.