Air-Only deck ventilator

DSLP Black: - build-in Air-Only vent use PVC balls, which float within the vent as soon as there is water on deck, along vertical guides, to form a watertight seal. As soon as the water subsides, the balls descend, letting air in again. We sell complete set with cabin ring and all fitting screws. There are some sizes: height x width = 2.68" x 9.05" (68mm x 230mm), cut-out Ø = 3.74" (95mm), free flow area = 3.72in2 (24cm2), weight ~ 2.2lb (1kg). Cover and bottom ring made of extremely UV-stabilized plastics: Luran S. We guarantee no yellowing, no weathering as minimum for 15 years. To be precise, cover and bottom ring colour is RAL 9016 Traffic White; - very strong! You can step on it and even jump. Buy them to fit instead of leaking mushroom and labyrinth ventilators or just add the right ventilation to your boat. Fit them on hatches or on fiberglass, wooden, steel, aluminum decks. About taxes: we based in Ukraine; customs fees for buyer could apply in its country.