I am not sure but I believe they do have other colors including Red.
I comes with extra refills. When you run out you can rotate the old tip to the back to push the new one forward. When they are all used up,, buy new ones!
Hi Jim, unfortunately we are not able to place custom or special refill orders on Homedepot.com. Special orders are placed through the Home Depot store and I would advise that you visit your nearest Home Depot Store and speak to one of our experienced associates at the Special Services desk. We appreciate your business and look forward to serving you in the future. Thank you for shopping Home Depot!