Optimum retainers

Nordson EFD Optimum Cartridge Retainers are molded from high-tensile, clarified resin that permits easy visual monitoring of fluids level. Large textured ribs provide an ergonomic grip for cap installation. Retainer caps feature locking tabs that snap securely into detents on the retainer body with an audible click. Only ¼ turn is required to lock the cap securely in place.