The Seaview Inteliplug ProX Transom Drain Plug has been reimagined and engineered to be easy to use and impossible to lose.• ProX includes hermetically sealed aeronautical-grade sensor with Deutsch plug pigtail• Triangular ergonomic cap so there are no tools required to tighten or loosen the plug• Captive spring-loaded cap stays attached• Modified NPT threads form a primary seal• The tension of the integrated O-ring forms a secondary seal• Engineered transom gasket â no messy silicone needed• Approved for all marine environments including saltwater• Direct replacement for the bronze and stainless traditional-style garboards• Large opening in garboard assembly for easy flow/drain• Manufactured from glass fiber-reinforced ABS to increase strength and flexibility• Increases fatigue endurance, resistance to high and low temperatures, and resistance to abrasion• 2" outer diameter â fits in the same spot as your current garboard drain plug Triangular ergonomic cap with no tools required to tighten or loosen the plug Modified NPT threads and integrated O-ring form a watertight seal Captive spring-loaded cap stays attached | Inteliplug ProX Drain Plug