Double Cutter Head Type Double Cutter Compatible Cleaner Series M18 Sectional Machines Connection Size 7/8 in Maximum Drain Line Inside Diameter 8 in Minimum Drain Line Inside Diameter 6 in Product Type Cutters Compatible Cleaner Manufacturer Part Number 2818-20 2871-20 Application Sectional Machine Cables Compatible Cable Core Type Open Wind Compatible Cleaner Grainger Part Number 55NJ55 Cutter Length 6 in Cutter Type Double Cutter Features Tool-Free Quick Connect