Buy 1 Get 1 Free The Culver's Double Deluxe Sandwich. Expires 3/6/20. Electronic versions of this coupon are not accepted. Shown: The Culver's Double Deluxe Sandwich. Based on purchase at regular menu price. Please no substitutions. Not valid with any other offer. Value 1/200 cent. Limit one coupon per person per visit. Valid at the Falkenburg Rd.& Big Bend Rd location only. 719 - 09/06CM-R