1.88 in x 10 yd. 48 mm x 9,1 m. Brand duct tape. Check local building codes for HVAC use. Suitable for use at no more than 200 degrees F (93 degrees C). Liability limited to replacement or refund of product cost. Conforms to ASTM D-4236. Questions: 1-800-321-0253. DuckBrand.com. Made in USA.