The NMT® Vent Limiter Assembly is composed of four components: the NMT® Vent Limiter, a vent elbow, the NMT® Vent Limiter Cap, and a cotter pin. The Vent Limiter Assembly enables a gas regulator to be positioned in various orientations while enabling the Vent Limiter to stay in its required vertical orientation for proper vent limitation. The Vent Limiter Cap is added to prevent debris from blocking the vent ports, and is required for all outdoor gas regulator installs.
