M14-E/M2 PART NUMBER 018 :aka NDRS Part Number XDRS02-14
AIR HOSE -Part#18 is 8mm OD plastic airline hose that connects from the upper arm to the bellows typically found on older saws. XDRS02-14 is a 10mm OD hose connects to the bellows or vacuum funnel for the new Saw Dust Management System.