This replacement is especially useful when the original switch has become unreliable
A side-discharge wet end can make a major difference when the water-handling side of a pump has reached the end of its useful life
A topside overlay is useful because it helps restore the visible button labels
A properly selected replacement helps preserve the intended fit and support of the assembly instead of forcing the repair to rely on a near-fit substitute
supports plumbing connections
PresAir Trol FF Switch [Center Spout] [Green Cam] [Threaded] (MTG-311A) praherplastics This replacement is especially usefulThe PresAir Trol FF Switch [Center Spout] [Green Cam] [Threaded] (MTG 311A) is an air control or air switch component from Presair Trol, intended for compatible spa and bath systems where correct fit and responsive operation are required. The listed part number is MTG 311A, making it easier to match this item against an existing component, parts diagram, or previous service record. Key listed details include Center Spout, Green Cam, Threaded, 311A,