Review on 🔧 4PCS 12-Inch Braided Dual Tire Valve Stem Extension for Truck RV Trailer Wheel (300mm) - Improved Extender Rod by Tim York

I use them to make filling the spare tire easier. Most people don't check the spare tire often, and all the ones I've checked have pressures under 20psi, while little donuts should be 60psi. The spare tire is useless if it is not inflated! I've connected three of them in series to get an extra deep spare tire well and it doesn't leak.