Hach Chemical® Polypropylene Prefilters

Xenosep® brand ValuSep™ SPE Filters for EPA Method 1664A are designed to provide high recovery and low blank values in Horizon® SPEDEX® and SPE Manifold applications. Chemically treated with a proprietary reverse phase adsorbent, single layer borosilicate glass ValuSep™ SPE Filters (47mm) can filter the 40 mg/L EPA PAR standard in approximately 10 minutes with significantly faster filtration times for 1L NPDES-type samples. ValuSep™ SPE Filters offer high recoveries and low blanks at a great price.