Jacuzzi Carvin DVK7 1 1 2" [7 Position] Bolt Multiport Valve Kit (39 2628 03 R) airswitches High performance air blowers deliver consistent High performance air blowers deliver consistent airflow for spa systems and dual voltage flexibility give this unit practical value because ozone systems work best when the replacement matches both the electrical setup and the intended equipment family A bolt style multiport valve kit helps restore full control of filtration settings when the original valve assembly has become worn or unreliable This type of kit is especially useful when the main valve body remains serviceable but the functional assembly has seen enough wear to justify broader replacement