CMI Inc FLEX18-1FF 173218 18" Corrugated Stainless Steel Flexible Water Line-1 Inch Hose Female Threaded NPT Connector-Designed for H20 Softeners Filters System Supply-Bendable Flex Pipe Connections, x 1&quot 1" swivel female threads allows for hastle-free connection to water heaters, softeners, and more Highly flexible corrugated stainless steel in a 18" length allows for multiple bends Use with water softeners, water heaters, whole house water filters, and more!