The Invisible Zipper Foot is very different from a standard zipper foot. It has 2 grooves at the bottom of the foot which hold the zipper coils in
Singer Invisible Zipper Foot #SP-163-P
Invisible Zipper Foot Attachment Vintage Singer Slant Sewing Machine
Presser Feet for Sewing Zippers and Raised Edges
Insert With Zipper
Presser Feet for Sewing
Juki DDL-8700 Invisible Zipper Foot - Juki Junkies
Presser Feet for Crafting
Package List -- Includes 1 x Invisible Zipper Foot and 1 x Wide Zipper Foot Material: Sewing machine pressure feet set is made from durable metal,
1 PCS Zipper Foot and 1 PCS Invisible Zipper Sewing Machine Presser Foot for Most Snap On Singer, Brother, Janome, Babylock Low Shank Sewing Machines
Zipper Invisible Sewing Machine Foot - #3 (S518W) - WAWAK Sewing Supplies
Left Zipper Foot Machine Accessories – Workroom Marketplace
WonderFil Specialty Threads - How to Sew an Invisible Zipper With a Regular Zipper Foot
Juki Feet
Snap-on Presser Feet for Sewing Machines – MadamSew