Sea-Dog 7275253 Mushroom Vent, 8″ OD, Dark Grey

Provide passive ventilation for your cabin by reducing stagnant air, mold and mildew without opening a hatch. Fully adjustable with a manual knob. Translucent center provides additional light down below. O-ring and gasket prevent water ingress. Trim piece provided for thru deck installations. 4“ hole required. Constructed of injection molded nylon with a nylon cover. Includes all necessary hardware for installation.WARNING: Cancer and/or Reproductive Harm. See