OPW 634TT Tight-Fill Top Seal Caps

Tight-Fill Top-Seal Caps are installed on top seal adapters, when not in use, to prevent gasoline vapors from escaping and to prevent water, dust, and debris from entering the tank. The OPW 634TT is designed to mate with the following top-seal adaptors:

• 633T
• 633TE
• 61SA
• 633TC
• 633TCP

Heavy duty and corrosion resistant, the body is made of Duratuff® 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 634TT can be locked with a padlock or wire seal.