Heng's® EZ - MountTM Vent... no screws or difficult installation at all!
The EZ-MountTM costs you less time and money than traditional lids and vents, because Heng's® does the hard work in advance! There are only four internal fasteners, and no external screws (no possibility of leaks).
You'll love the patented hinge system that allows the lid to be attached without hinge pings... that means less parts get exposed to weathering. Installs into a 14 x 14" rough opening. Has a self-centering device for excellent alignment.
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