Approximate Outside Diameter: 2-1/4" and Inside Diameter:1-3/4".
Sold Individually New, Not in Retail Package. "CAP ONLY" - spout and can not included.
OEM Original Genuine Replacement Midwest Can Company Brand Screw Cap Collar.
For application with the 1, 2, 5, and 6-gallon gas can models numbered 1100, 1200, 1210, 2200, 2300, 2310, 2600, 5600, 5610, 5800, 6600, 7600, and 8500 in the Midwest region.