Style A-external hinge. Anodized heavy-duty aluminum frames. Heavy-duty acrylic top. No sharp corners to snag lines or sails. Heavy-duty hinges, quick acting, adjustable tie down dogs. Locked vent position.
- Cut Out: 18-1/2" x 18-1/2"
- Flange: 20-1/8" OD x 20-1/8" OD