APPLICATION: LOCKABLE COVER FOR SERVICE VALVES WITH 2-1/2" HANDWHEELS ON PROPANE TANKSKEEP ANYONE FROM TAMPERING WITH YOUR TANKOUTSIDE DIMENSIONSHEIGHT: 1-7/16"OUTSIDE DIAMETER: 3-1/16"INTERNAL DIMENSIONSHEIGHT: 1-1/8"INSIDE DIAMETER: 2-5/8"NOTE: PICTURE SHOWS A SERVICE VALVE WITH COVER INSTALLED, SERVICE VALVE NOT INCLUDED! (SUPPLY YOUR OWN LOCK) FREE SHIPPING TO THE 48 STATES Be sure to add me to your favorites list! Check out my other items! Sign up for PayPal; the fast, easy, and secure way to pay online. We have thousands of parts in stock, if you do not see the part you need!Feel free to ask us about conversion kits for almost anything including trucks, cars, generators, tractors, boats, motorcycles, RVs etc. We can build a kit to convert almost any engine! WARNING:This product can expose you to chemicals including Lead and lead compounds, which are knownto the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov. WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the state of California to cause cancer. www.P65Warnings.ca.gov. WARNING: These products contain a chemical known to the state of California to cause cancer and birth defects or reproductive harm. www.P65Warnings.ca.gov.