Hatch & Base, Tank Lids, Threaded Lid & Ring Assembly, 1″ Vent, 1″ Breather, Labyrnth 25mm.

Standard Threaded Lid & Ring Assembly. Lid has a 1″ Fixed Labyrnth Vent with Umbrella.

Umbrella prevents ingress of rain. Labyrnth prevents liquid from sloshing out.

Ring is installed using ‘self taping screw’ on product. Lid then screws on to ring.