Up for sell is 5 USPS approved Petport poultry shipping boxes by Horizon with do it youself filters cut and ready. You save money by attaching the filters yourself, using Elmer's glue. 20" long x 16" tall and 8" wide. E-mail me your zip code for S&H charges. I have a lot of these. If you want more than 5, send me a email and i will give you a total. SHIPPING AND PAYMENT DETAILS Shipping Cost: Not Supplied I will email you a delivery confirmation when they are shipped. Seller accepts PayPal only.