Gate Valve Lockout Device | 1 to 2-1/2 Inch Dia | 2 Pack | Hose Bib, Gas, Propane Tank, Water Spigot and Faucet Locks Outdoor | Red for Professional and Industrial Use: Amazon.com: Industrial & Scientific
Item # SSLBV50, Stainless Steel Sliding Lock Ball Valve On Compressed Air Systems, Inc.
Amazon.com: Valve Lockout and Safety Padlock Combination Oil Gas Valve Lock Natural Gas Valve for Chemical Industry, 1-2.5 inch, Red (1) : Industrial & Scientific