I'm doing some bivy modifications and in the process want to replace a single-pull slider with a dual-pull slider. The zipper is coil-style and measures ~5.1 mm (0.2") across the coils when closed. I'm trying to figure out what # zipper pull to order.
Per Seattle Fabrics (http://www.seattlefabrics.com/zippers.html#coil%20tape), I'd want a #5 since the coils are ~5mm across when closed.
Per OWFinc (http://www.owfinc.com/Zippers/zippers1.asp), I have no idea (#4?).
Can anyone confirm, deny, or hopefully clarify this information? Such a hassle for a <$1 item, I guess I could just order a bunch!