Can White Plastic Inspection Hatch with Removable Hinge (373 x 373mm)

Can SB 21.2449 inspection hatch in white ASA plastic (RAL 9016) with 180 degree opening angle and with removable hinge.
The boat hatch measures:
External: 373mm wide x 373mm high
Internal: 290mm wide x 290mm high

Please note: this hatch is not supplied with the latch.