Hello, and thank you for your question. For disposal options, please see the link below for disposal options near you. Thank you. https://www.bernzomatic.com/About-Bernzomatic/CylinderSafe
Hello, and thank you for your question. Yes, you can refill your flexible lighter with our butane.
No, it is push-to-fill only.
You will have to contact Home Depot directly on that. I’m a customer myself.
Maybe you can order online to be delivered, if there are none in stock at your store. There are some in my store, so they are still selling them. It's worth ordering. It's very easy to use.
I use it with my Weller solder iron / torch and it works fine. It has a small steel tube that fits and opens the filler on the iron and opens the valve on the can at the same time.