Glass window diameter:approx.5.2in

Diameter open window:approx.6.3in

Boat Porthole overall diameter:approx.8.5in

Tempered glass thickness:approx.4mm/0.2in

Porthole material:Tempered Glass+ABS+316 Stainless Steel

Rubber seal ensures weatherproofing when mounted on vertical surfaces

Low profile hatch designed for installation on internal or external flat surface

The two fittings can be loosened to allow you to swing open the porthole

Easy to install, pre-drilled countersunk fastening holes (screws not included)

Package

2 x 8 inch Boa Round Opening Portlight Porthole