This has always beens the most popular size for all large projects because it's less than 3 quarts together. For example Machine Shop, Automotive Exteriors, Interior Decorating, Automotive restoration, and more. This is a Drupal site, but I have employed the .html tag because customers seem to have that page saved in their browsers for future orders. The cost delivered is only $7.00 more, and by default will be in multiple containers unless you say otherwise: flat rate USPS Priority Mail if you only need one of them.
1 Gallon Rugged Gun Blue
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This is the Gallon size when sent UPS ground, or (2) Quarts and (2) 16 ounce when sent by USPS Priority Mail.