Optional weather flap saves time and effort raising and lowering the door to keep insects and debris out. Model WF24 Weather Flap for DG24. Free Shipping to the U.S. 48 States. WF24$28.00 The following surcharges apply for the Silver, Ultra, Diamond, Gold and Platinum Kennels ONLY!!!! * Add $50 for shipments to states within the Pacific Time Zone. * $300.00 Minimum Order * Add $50 for RESIDENTIAL DELIVERY. All of our products are proudly made in the USA. We charge Ohio State sales tax on all Ohio Resident sales unless we have a OHIO SALES TAX EXEMPTION FORM on file. The form is available at the link on the left side of this page. Call Toll Free: 1-800-760-3841 M-F 7:30am-4:30pm EST.