EZwaste XL Solvent Waste filter replacements come in a pack of 1. The Replacement Chemical Exhaust Filter EZwaste XL Solvent Waste 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 of disposal for vapor wastes. The EZwaste XL Solvent Waste system also features a closed loop design which protects against leaks and spills, improving overall lab safety.. Height: 10.5". OD: 2.68". Filter thread: 1/4". Large. . Thomas 330-0909-TMS EZwaste XL Safety Vent Chemical Exhaust Filter, Large, 2.68" OD, 10.5" Height. Country of Origin : United States. Part Number : 1171W38EA. Pack of : 1.