Review on 🔧 Rugged Ridge Brass Tire Deflator Kit - Model 15104.53 by Jonathan Wilson

They are great for flattening tires. They definitely slow down as you approach the set value. I let them get to the point where they can barely get air out and then inflate the tires manually. The air releases get down to a pound or two of my set point fairly quickly. This is a definite protection for the knees and lower back.