A Pressure Indicator Valve Stem Cap RWL is a valve stem cap that visually alerts the driver when the tire pressure is low. It is a simple and inexpensive way to help prevent premature tire wear and blowouts.
The cap has a small window with a colored indicator that changes color depending on the tire pressure. Green indicates that the tire pressure is normal, yellow indicates that the tire pressure is slightly low, and red indicates that the tire pressure is dangerously low.
To use, simply screw it onto the tire valve stem in place of the regular valve stem cap. Check the color of the indicator regularly to make sure that your tire pressure is correct. If the indicator is yellow or red, inflate the tire to the recommended pressure.
Pressure Indicator Valve Stem Caps RWL are universal and can be used on cars, trucks, SUVs, RVs, motorcycles, and bicycles. They are also relatively inexpensive, making them a great value for your money.