PYREX� Funnels, B�chner, filter, 175mm diameter sintered glass disc, porosity 4

PYREX� Funnels, B�chner, filter, 175mm diameter sintered glass disc, porosity 4
Manufactured from 3.3 expansion borosilicate glass complying with ISO 3585 (ASTM E-438 Type 1 Class A)
Sintered glass filter discs comply with ISO 4793
Used for the filtration of solutions. No filter papers required
Available in a range of porosities (grades)
Highly resistant to most corrosive reagents including ammonia and concentrated sulphuric acid