The “WL/WF” usually stands for “With Lid / With Foam” configuration (i.e. comes with pre-cut foam layers and a foam lid insert).
Designed for a medium pistol / handgun or multiple handguns with magazines.
Exterior body is made of high-impact polymer (polyethylene / high-impact polymer) to resist crushing impacts.
Weatherproof / dustproof / crushproof, with O-ring sealing to improve protection from moisture & dust intrusion.
are a few highlights:
Pelican V200 Vault Medium Case With Foam (Black) — standard “with foam” black configuration
Pelican V200 Vault Case w/ Preinstalled Panel Brackets — with panel brackets for modular layout
Pelican Vault V200 Hard Case with Foam — same model, “hard” version emphasis
PelicanV200 Vault Pistol Case (Medium) — medium pistol case configuration