Enhanced Stability: Crafted from strong, flexible rubber material, this Gas Tank Base Pad offers superior pressure resistance, ensuring optimal support and stability for your propane/LP cylinder. Sensor Compatibility: Designed to work seamlessly with ultrasonic sensors, this pad elevates the cylinder above the tank bracket, allowing easy installation of a wireless propane meter underneath for accurate propane level readings. Versatile Sizing: Compatible with 20-40 lb. certified propane/LP cylinders, this protective ring accommodates various cylinder sizes, including 20, 30, and 40 lb. equivalents (5, 7.5, and 10 gallon cylinders). Optimal Dimensions: With an outside diameter that provides a maximum height of 0.98 inches, this pad serves as both a spacer and protective rubber footing for your propane tank base. Easy Installation: Effortlessly slide this propane tank protection ring over the base of most 20-40 lb. tanks to enhance stability and protection. Note that it slightly increases the outer diameter of the tank base for added security. Description: Protect your gas tank with this gas tank base pad. Made of black rubber, this low-pressure cylinder protection ring offers strong pressure resistance for better support and stability. It is designed to work with ultrasonic sensors by lifting the cylinder above the tank bracket, allowing clearance to install a wireless propane meter underneath for accurate readings. Compatible with 20-40 lb. cylinders, this pad fits 20, 30, and 40 lb. certified propane/LP cylinders, equivalent to 5, 7.5, and 10-gallon cylinders. The outside diameter provides a maximum height of 0.98", serving as a spacer and protective rubber footing. Easy to use and install, simply slide this propane tank protection ring over the base of most 20-40 lb. tanks. Please note that it will slightly increase the outer diameter of the tank base. Ensure your propane tank stays secure and protected with this reliable gas tank base pad. Item Name: Spacer Ring Material: Plastic Style: American Item No.: Gas Tank Base Pad Features: Versatile, Durable, Stable Size Details: Outer Diameter: 21cm(Approx.) Inner Diameter: 18.5cm(Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1pc: 1 x Protective Spacer Ring 2pcs: 2 x Protective Spacer Rings