Introducing the Viva Skylo AIR Bottom Entry Fill Valve with ½” UK Brass Thread. Decrease the number of items in your tool belt and reach for this space-saving, full-featured fill valve whenever you're working on a cistern project. The small and compact design allows this valve to fit into an array of cistern sizes while its adjustable height (from 8" to 12") provides greater flexibility. Additionally, the delayed fill capability and float shield make it ideal for tight locations, giving it the ability to squeeze into places other valves don't fit.