The 1/4" Charging Hose Set includes 72" compact balls in a pack of 3, designed for use with Imperial brand systems. Made of brass, these yellow hoses have a maximum pressure of 800 psi and are compatible with Thermaflex M-KC models. Featuring a ball valve adapter design, these waterproof hoses are ideal for central air conditioner maintenance, offering a 45-degree bend for added flexibility. Manufactured in the United States with a 1-year warranty, this set is a reliable and high-quality choice for HVAC and refrigeration professionals.