How do I find spray can attachment ?

Not quite sure what kind of attachment you are looking for. Here are links to several:

https://www.harborfreight.com/can-gun-94815.html

https://www.amazon.com/spray-can-sprayer/s?k=spray+can+sprayer

Check your local hardware or home improvement store. They carry them.

I got mine at Lowe’s but I’m sure you can get at any hardware or big box store as well as Amazon.

Hello. Are you looking for replacement spray can nozzle tips or the attachment that makes spray painting automatic like the rustoleum comfort grip?

More information could be useful to get you the answer you’re looking for.

I do highly recommend the comfort grip!

https://www.amazon.com/s?k=rust-oleum+comfort+grip&gclid=Cj0KCQjwxdSHBhCdARIsAG6zhlUyGzC-Q2angOXw_Ph1eGDqNIkzdGG244zw8mJ1ioKgEk_eYJ6REbEaAh9GEALw_wcB&hvadid=410002443579&hvdev=c&hvlocphy=9008412&hvnetw=g&hvqmt=e&hvrand=11858441566493497722&hvtargid=kwd-156372559264&hydadcr=9408_11542852&tag=googhydr-20&ref=pd_sl_e1px1cd6f_e

Most stores that have a good variety of spray paint will also have the attachments available (usually hanging nearby). The attachment can be a reall finger saver!!

Lots to choose from:

https://www.amazon.com/spray-can-attachment/s?k=spray+can+attachment

walmart, Home Depot. Lowes and most all hardware stores. You can also cut off a piece of wood like a popcycle stick or paint stirrer and use it with tape

A hardware store will have this... just ask the service person to find it for you.

I purchased a hand grip one for my husband since the regular nozzle makes his hand ache. I found it in the spray paint section at Walmart.

I think this is what you are looking for: https://amzn.to/3rpmIE7

What kind of can

You can buy the spray can attachments from Home Depot, Lowes, Ace or Amazon.

I'd bring the can to the hardware store with you, it's often hard to make a match online.