634TT 4 Inch Tight Fill Top Seal Caps

Tight-Fill Top-Seal Caps are installed on top seal adaptor, when not in use, to prevent gasoline vapors from escaping and to prevent water, dust, and debris from entering tank. The Seal Caps 6344TT is designed to mate with 4″ Top Seal Adaptors. Heavy duty and corrosion resistant, the body is made of PA66 to help eliminate rust and oxidation for a long maintenance-free life. The toggle lever distributes downward pressure to compress its Buna-N gasket evenly, assuring a positive, water and vapor-tight seal. The top Seal Fuel Cap can be locked with a padlock or wire seal.