MarincoN10863DW Snap-In Deck Plate, 3" White

This is a well made strong and good lookingUnit.James

I bought these to replace the old chipped and cracked ports on my boat.Fits exactly to replace old plastic pieces on boatSpray painted them black and installed in minutes using my existing hardware.Great price and exact fit.

We had two old style openings from the 1990's. the plastic cover was breaking off. The newer design allows for a better opening slot for a screwdriver to open the plate. We open the caps each evening after sailing to allow dehumidification.

These are poorly described. The 3" they describe these as is nominal, the inside diameter of the fixed base part is 3-1/4 inches which fits my 20 year old nicro ventilators. The cutout is 3-3/4 inches.

I wish they made screw in ones this size but these work very well and keep water out just be careful when prying open.

It worked perfectly in the tight space that I needed it for

Great buy for the price. Make your cut precise or you won't have enough material to screw into. I recommend.

Had an old stove on the boat and removed so this sealed the opening. The inside of the boat looks bad, but the exterior is sleek looking.

I have an old 1977 sailboat that needed this size, I could not find the item elsewhere...fits perfectly!Thank you!