*PLUMBERSSTOCK EXPERT* responded:
Hi! Thank you for visiting PlumbersStock.com. We value your interest in our Slantfin BL-75-6 baseline 2000 3/4" x 6' baseboard heater. Here in PlumbersStock, it is our satisfaction to help you with your concerns. With regards to your question, you are correct. The internal copper with fins and end caps are included. For other inquiries, please contact one of our customer support specialists at 435-868-4020 or through e-mail @ firstname.lastname@example.org. If you're interested in purchasing this product, feel free to click Add to Card, enter your zip code and you're all set. Happy shopping!