Check the listing for details. Omnipure K2555-BB Deionizing Mixed Bed Filter with 1/4-Inch FPT (2pack). Condition: New. Listed at 43.98 USD. 2 PACK Omnipure K2555-BB Deionizing Mixed Bed Filter with 1/4-Inch FPT Economical Mixed Bed Deionizer Replacement Filters for all major brands of laboratory water systems including Aquamax, Millipore, Barnstead, Labconco and Continental/US Filter laboratory water purification systems.Ionac NM-72/HP is a high capacity Semi Conductor grade mixed bed ion exchange resin consisting of a 2:l by volume mixture of a Type II strong base anion exchange resin and a strong acid cation exchange resin. Ionac NM-72/HP is manufactured with a closely controlled particle size (screen) distribution, then specially purified and converted to better than 90 percent of its regenerated form to insure that Ionac NM-72/HP yields a high purity water quality. COMPATIBLE TO USE IN : AquariumsInline DI Water Filter for Medical Laser & IPL Equipment