Reusable bottletop filters, 250/500 mL

The reusable 250 and 500 ml bottle top filters made of polysulfone with silicone O-ring are firmly screwed onto media bottles with 33 or 45 mm thread. Suitable for pressure and vacuum filtration up to 0.6 bar. Suitable for 47 or 50 mm membranes. Vacuum connection at the lower part of the filter unit. Permanent graduation. Supplied complete with gasket, cap and polypropylene hose adapter. Break-proof, non-toxic. Autoclavable.