If you own a dually truck, RV, or Motorhome – then you know difficult it can be air up the inner dual wheels, or even to check the tire pressure of the wheel because there is so little space to work with. To solve this problem; Pacific Dualies has developed several valve stem extenders and different braided stainless steel valve stem extension systems that make checking tire pressure a breeze. All Pacific Dualies Braided Stainless Steel hoses are Made in USA and are constructed of hi-temp fiber-reinforced rubber and wrapped with durable 7-wire braided stainless steel. Multiple mounting options are available. Our systems work with most OEM steel wheels, with and without Wheel Simulators. Call Pacific Dualies at 800-426-0584 for details, or visit our website at www.pacificdualies.com