Vacuum filtration manifold, Millipore^® model 1225

Provides simultaneous vacuum filtration of up to 12 samples; especially useful for radiochemical tracer techniques.

Filter disks, 24 or 25 mm diameter, are supported on separate screens (5) in numbered positions on the support plate (4). Numbered sample cups (capacity 15 mL each) are molded into the top plate (2). Filtrate may be allowed to pool in the chamber (11) or may be collected in 15 mL test tubes supported in the numbered rack (6). Handwheel (1) tightens O-ring seals for each filter (3) and for chamber (8 and 9). Ball valve (7) connects to vacuum tubing (not shown, but provided). Drain plug (10) seals chamber drain outlet.

Chemical compatibility: acid- and base-resistant, including TCA; solvent-resistant below 80°C. Not recommended for use with strong oxidizing acids. Not autoclavable.

All parts are provided. Also included are three extra support screens and filter-sealing O-rings (a total of 15 each) and 15 plugs to seal unused positions on the top plate.

Millipore is a registered trademark of Merck KGaA, Darmstadt, Germany