White Castle Restaurants is hosting their National Slider Day and offering 2 Sliders for Free valid only on May 15, 2016 with this Printable Coupon at participating locations.
NOTE: Coupon is valid only on May 15, 2016. Offer valid for any single Slider on oa bun (excludes waffles and toast sandwiches). Not valid with any other coupons, discounts, specials, online orders or offers. Limit one coupon per customer per visit.