PCR20
RULAND PCR20-5-4-A Coupling, 4 Beam Clamp, 5/16in.x 1/4in.
You can put Super Lube Multi-Purpose Synthetic Grease on zippers and they slide without catching.
RULAND PCR20-6-4-A Coupling, 4 Beam Clamp, 3/8in.x 1/4in.
You will find that Innovative Composite Technologies makes the surface easy to wipe down quickly.