Amazon.com: Compatible Replacement for Shop Vac and Ridgid Style Wet Dry Vacuum Cleaner Crushproof Industrial Commercial Grade Extension Hose with Air Suction Control, Lengths up to 50 Foot by 1-1/4 inch :
RIDGID 2-1/2 in. x 7 ft. Dual-Flex Tug-A-Long Locking Vacuum Hose for RIDGID Wet/Dry Shop Vacuums LA2520 - The Home Depot
RIDGID 65903 1-7/8" x 10' Professional Grade Vacuum Hose