Puncture Seal (PS) System is a patented 1/4" flow system that features a low cost Puncture Seals closure cap and a specially designed quick connect coupler that automatically breaks the membrane seal on the cap when connected. Two PS closure styles are available, a snap-in style to seal Hedwin Cubitainers® as well as a threaded cap design for 38mm threaded fitments and even rigid bottles. Make instant connections with both the UDC and PS systems to bulk packaging systems including bag-in-box (BIB), flexible and rigid packaging styles. An automatic shut off valve in the coupler prevents costly or dangerous spillage after disconnecting from the empty bag. An ergonomic design and shrouded thumb latch pad produce a coupling that is easy to grip and simple to operate.