The HD filter Kit, versacap 83mm ezwaste solvent aste system is designed to be an affordable solution for HPLC liquid waste disposal. Each system is manufactured to safely collect waste from two HPLC machines. This system features an activated carbon filter which traps Volatile organic compounds from being released into the air. This prevents chemicals from being inhaled by lab workers and provides an easy mechanism for disposal for vapor wastes. The ezwaste solvent waste system also features a closed loop design which protects against leaks and spills, improving overall lab safety.EZwaste HPLC Solvent Waste System, Cap-Only Assembly, 83mm (83B) VersaCap with Four (4x) Ports for 1/8 Inch O.D. Tubing; Three (3x) Ports for 1/4 Inch O.D. Tubing; One (1x) Hose Barb Port for 1/4 or 3/8 Inch I.D. Tubing. Foxx Life Sciences EZwaste HPLC Solvent Waste System, Cap-Only Assembly, 83mm (83B) VersaCap(330-0419-OEM)