TSS Filters are recommended for use in Standard Methods 2540 C and 2540 D. Optimized surface characteristics of this binderless borosilicate glass microfiber filter eliminates pin-holing and fiber-she

Hach Grade AE filters are comparable to Pall Type A/E filters and the 47mm diameter is compatible with the magnetic filter holder #1352900. Filters feature fast flow rates, fine porosity and particle

Items with this mark may be considered hazardous under some shipping conditions.If necessary, we will change your selected shipping method to accomodate these items

Hach® QT Filters are recommended for use in various Hach Water Analysis Handbook Methods and other environmental reference methods. Optimized ashless hardened circles provide an abrasion resistant smo

Standard Methods is the worldwide standard text for water analysis since 1905. Standard Methods provides hundreds of EPA-approved laboratory tests of water quality and properties. These methods repres