This A-A-59326-compliant polypropylene dust plug has a male adapter connection with a 3/4-inch coupling size. The coupling component is a plug with a DP coupling type and has a plug outside diameter of 1 1/4 inches. This dust cap can be used in general-purpose, food, and beverage-based applications. Its working temperature is 0 Degrees F to 150 Degrees F, with a maximum operating pressure of 150 PSI.