Portlight frame is moulded high impact resistant resin, available in a choice of black or white. The clear lens is injection moulded super tough polycarbonate. Supplied complete with insect screen and trim ring. The smaller sized ports 171450 - 171459 have
friction hinges to hold the port window open at any chosen position. The larger ports 171460 - 171463 have a spring loaded hinge
to hold the port window in the fully open position. Quick action locking knobs, the number of which varies with portlight size, secure the lens against the rubber seal on the frame to ensure a watertight closure.
