White Castle 2 Free Sliders Posted on May 26, 2012 by amanda Leave a comment Sign up at CraverNation.com, and White Castle will send you a coupon for 2 free sliders of $1 off frozen sliders. Excludes breakfast, bacon and double sliders. Offer valid through May 31, 2012. Related posts: White Castle BOGO BBQ Pork Sliders – through August 31st White Castle $1 for 4 Sliders White Castle BOGO Breakfast Coupon – Through June 28 Free BBQ Pulled Pork Slider – White Castle Chic-fil-A Cow Appreciation Day TOMORROW – July 13th Leave a comment Cancel reply Your email address will not be published. Required fields are marked *Comment Name * Email * Website Notify me of follow-up comments by email. Notify me of new posts by email.