Round boat deck hatch with a detachable cover provides easy access to compartments, wiring, or storage; ideal for marine yachts, RVs, ships, and open water setups needing secure entry points. Made from UV resistant and weatherproof materials that withstand saltwater, sun exposure, and outdoor conditions; delivers a long lasting, reliable deck seal for both freshwater and saltwater environments. Watertight construction prevents leaks and keeps storage areas dry during heavy rain or rough seas; supports interior cleanliness, safety, and gear protection on boats and mobile homes. Easy to install and remove with pre drilled holes for secure mounting on most flat surfaces; ideal for marine upgrades or replacement parts for damaged deck lids or aging hardware. Use scenarios Replacing a damaged deck lid on a small boat or yacht to restore a dry, secure storage compartment and simplify maintenance. Providing quick access to electrical wiring or equipment compartments on a sailboat or motorboat while maintaining a watertight seal in open water conditions. Upgrading an exterior storage area on an RV or camping trailer to improve weather resistance and prevent water intrusion during travel.