Filter Unit, Type A (Hach)
Certified for water quality work, this sterile, disposable, polystyrene filter unit contains a 47 mm, 0.45 µm cellulose membrane for superior recovery and growth of microorganisms. It offers good chemical resistance to dilute acids, aromatic and aliphatic hydrocarbons, and conforms to APHA and Standard Methods. Filter unit is available for use in multiple filtrations. Nalgene®.