I live in Hicksville and am having a tough time finding a place that does co2 refills. Google search really hasn't come with anything that does refills. Any ideas?
I cant speak for Long Island, but 2 other places you can check besides a Welding supply store is #1 your local homebrew shop. Many of them where I live will refill CO2. #2 you can try a paintball store.
General Welding Supply Corp
4900 Veterans Memorial Hwy, Holbrook, NY 11741
(631)563-6561
They also have other locations that may be more convenient for you.
Ken-Mar Fire extinguisher Co. Inc
168 Larkfield Rd, East Northport, NY 11731
(631) 319-7741
Just down the road from Karps.
They are the only two that I have used, and Ken-Mar was several years ago.