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General Vacuum Manifold Accessories Frits for SPE Cartridges Clean 20um Polyethylene frits for SPE cartridges Made with clean polyethylene for clean extracts Polyethylene frits are precut to fit into our column or custom packing needs Empty SPE Cartridges Made with clean polypropylene for cleanextracts Unufirn batch-to-batch for clean extracts Available in sizes from 1 to 6 ml
General Vacuum Manifold Accessories Frits for SPE Cartridges Clean 20um Polyethylene frits for SPE cartridges Made with clean polyethylene for clean extracts Polyethylene frits are precut to fit into our column or custom packing needs Empty SPE Cartridges Made with clean polypropylene for cleanextracts Unufirn batch-to-batch for clean extracts Available in sizes from 1 to 6 ml