OVERLIT: Dome made by stabilized, glass fiber reinforced resin, highly transparent, single or double wall, to be fitted to COVERLINK, complete with seals and assembling screws. It can be opened both manually or power assisted in the hinged execution. It can also be of the fixed type.
OVERLUX: Acrilic type dome, single or double wall, it is assembled on the COVERLINK or on a concrete curb. It can be opened, when hinged on an aluminum frame, thru a manual device or a three-phase motor. It can also be directly fixed to a concrete curb.