The 90 mm filtration apparatus with replaceable fritted glass support is recommended for large volume filtration analysis of corrosive liquids or samples with high particulate loads.

The glass support disc can be replaced if it becomes clogged or if sample-to-sample contamination is a concern, Like the apparatus with fritted glass support, the ground joint connection eliminates the possibility of phthalate contamination that can occur when using silicone or neoprene stoppers.