Chicago Faucets 671 XJKABNF Metering Cartridge Fits 665 669 Series 20579028 AWS Classification EWP AWS Classification EWP Air Flow 31 cfm Filter Type HEPA Series 20V MAX(R) Standards UL Listed Tank Material Plastic Voltage 20 120 Item Portable Shop Vacuum Battery Included Bare Tool Bare Tool Corded Cordless Cordless Corded Banded Cordless Features Cordless and Corded Sub Category Stems and Cartridges Fits Brand Chicago Faucets Finish Bright Nickel Material of Construction Stainless Steel Standards ADA compliant For Use With Handle Model Numbers 665 and 669 Item Metering Cartridge Connection 1 2 in MNPS Type Metering Their cylindrical base has discs or openings that regulate flow as faucet handles are turned on and off