Type UI is standard flexible tubing.

Tubing sizes range from 3/16″ to 7″ ID with special diameters made to order. Tubing constructed of galvanized stainless steel, aluminum, brass, or bronze interlocking strips from .010″ to .012″ ID. Soldered, brazed, or welded on pipe nipple with fittings desired to fill any requirements. Tubing normally furnished unpacked, but packings may be ordered.

Able Type UI Interlocked Flexible Metal Tubing