Weathermatic sprinkler controller accessories are part of an expanding line of Weathermatic sprinkler controller replacement parts and accessories. Our Weathermatic sprinkler timer accessories currently feature controller cabinet replacement keys. Misplace your sprinkler timer cabinet keys? Donít worry; we have the spare keys you need. Our Weathermatic controller cabinet spare keys are compatible with Weathermatic Smartline 1600 series, Smartline 1620 series, and Smartline 1624 series controllers.