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Improve your A/C performance with Four Seasons manual shut-off valves. These valves are built from quality materials to provide long-lasting, dependable service. Four Seasons manual shut-offs feature a leak-free design to cut the flow to your heater core. These inline OE replacements do the job you need with the perfect fit you want. Get much cooler air in your rig's cabin by adding manual shut-off valves from Four Seasons.
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