Lewmar Medium Profile Hatch This Lewmar Medium Profile Hatch features thick acrylic frame sections allowing for greater strength and durability. The internal and external handles provide added security while the self-supporting friction levers hold the lid open in any position up to 95. With a corrosion-resistant clear anodized aluminum frame with flange bases, inset hinges and snag-resistant rounded edges, this hatch is ideal for larger offshore yachts. The unique sealing system allows for easy