Vent fitting for NG batteries

Has anyone vented Victron NG batteries to outside? Noticed there’s a small reference to it on the SuperPack NG manual and it looks like the same fitting has been added to the later NG batteries. Is there a fitting available from Victron with o-ring, hose tail etc?

There’s a small group of boaters trying to influence UK Boat Safety Scheme (BSS) rules and trying to bring in a requirement to install lithium batteries outside the living area and venting outside. When retrofitting to traditional UK Narrowboats this is pretty much impossible (similar to a Yacht/Catamaran). Thinking this venting system would possibly be acceptable depending on how extreme the requirements would be. Has anyone got any thoughts on these recommendations who’s working on boats? Thanks, Ed

Edit. Here’s a link to the document. New guidance helps boaters navigate the switch to lithium batteries - The Inland Waterways Association

It’s clearly not the same fitting as the one on the Superpack NG.

The one on the Superpack has a 3/4 inch threaded surround, and the one on the NG has no threading and the hole is less than 10mm

The photo I posted is the latest NG and it has a 3/4 BSP female thread. I’ve not seen a Superpack NG but the vent looks identical in photos.