To offer a more complete line of tube spacers, PFS has begun manufacturing a 9/16" tube spacer to join the current line. Now PFS offers spacers for 1/4", 3/8", 1/2", 3/4", 9/16" and 1" diameter tubes. The TS-562M (9/16") is the latest diameter spacer manufactured from stainless steel grade 316. As with all spacers, other alloys are available upon request including epoxy powder coated.