Portlight for marine use

In a portlight for installation through a side wall opening of a marine vessel from the outside, the improvement comprising, a rectangular frame member, said frame member being integrally formed with a tubular spigot portion defining a rectangular through opening and a flange extending perpendicularly-outwardly of one end of said spigot portion, and inwardly-extending peripheral lip at said one end of said spigot portion, said lip defining an interior, perpendicularly, peripheral shoulder at the inside of said one end of said spigot portion, a rectangular light of substantially same size and shape as said rectangular through opening in said tubular spigot portion, means for securing an upper end portion of said rectangular light against an inside upper wall portion of said spigot portion for holding the upper end of said light against said shoulder, and clamp means for removably securing the lower end portion of said light against said shoulder, whereby, upon installation of the portlight, the pressure of water impinging against the outside of the light fitted in the frame will be transferred through the frame to the outside of the vessel hull.