FYPower 1/4 inch x 25 ft Recoil Poly Air Hose Kit, 20 Pieces Air Compressor Accessories Set, 1/4" NPT Quick Connect Air Fittings, Blow Gun, Chuck, Safety and Tapered Nozzles, Couplings - - Amazon.com
POWERTEC Universal Small Port Hose Kit with a 4 in. to 2-1/2 in. Hose Tapered Adapter 70327 - The Home Depot
Festool Tapered Anti-Static Hose 32mm/36mm x 3.5m (204923) - Rockler