These separating zippers have a special design and a vinyl treatment that make them water resistant and eliminate the need for storm flaps.
Non-separating coil style zipper made by YKK. This is a one-way zipper and very lightweight.
YKK 96 UL Non-Separating Coil Zipper
YKK Zipper, Marine Grade #8 x 36 White
YKK #8 Nylon Coil Non-Separating Zipper - WAWAK Sewing Supplies
#8 Water Resistance Nylon Separating YKK Zipper
#5 Water Resistance Separating YKK Zipper - Choose
36 VISLON ZIPPER ~ YKK #8 Molded - Separating ~ Black
AQUAGUARD® (Coil): USA - YKK Americas
YKK Separating Zippers
#8 Water Resistance Nylon Separating YKK Zipper
Dual separating zippers. For those heavy-duty applications that require a tougher zipper.
YKK® Two-Way Separating Zipper #8 Vislon (Molded Tooth)
YKK WATER RESISTANT COIL ZIPPER CHAINS