I needed zippers, often over 100"-long so the only legitimate alternative was learning to make them myself. This is the process.
Heavy Duty Make-A-Zipper - MyNotions
Heavy duty materials and the extra wide adhesive edge are what makes this zipper the perfect fit for a tough job. The Heavy Duty zipper comes with the
ZipWall Heavy Duty Zippers (Case Pack of 12 with 2 Zippers Each)
Heavy Duty Make-A-Zipper in 10 colors - Sullivans USA
Heavy Duty Zippers - Marine & Sleeping Bag Replacements
RC Flying
Super Large Plastic Zipper Size 20#Heavy Duty Zippers 10 in Long with Big Slider and Puller for DIY Sewing (Black -2pcs)
Making Heavy-Duty Zippers
Keep Zippers Working When Living on a Boat - The Boat Galley
Zip Tie Uses: 12 Smart Ideas for DIY Homeowners - Bob Vila
thintz12
Zippers
Heavy duty materials and the extra wide adhesive edge are what makes this zipper the perfect fit for a tough job. The Heavy Duty zipper comes with the
ZipWall Heavy Duty Zippers 12 Pack - HDAZ12 (Case Pack of 8)
thintz12
ZipWall HDAZ2 3 in. x 84 in. Heavy-Duty Adhesive Zippers Includes Knife (2-Pack) 204900 - The Home Depot