Continuous Coil Zipper is sold by the foot. Full roll discount applies to a reel of 328.09 feet.
YKK® 8 Coil continuous Black Uretek water resistant 5/8" zipper chain/tape with a T4 shiny finish, 8CT4. Also known as AquaGuard® , a water repellent zipper. It is created by coating PU on the backside of a coil zipper.
8 coil = .284 in ~ 9/32"