Plastic Sleeving for copper pipe

I need to find some plastic sleeving for copper pipe to protect it from concrete.

I tried on-line searches but apparently I don't have the right terms.
The big box stores don't seem to carry it.

Thanks

Armaflex is the product to search for.

I generally stay out of the conversations on plumbing as I am not a plumber (at least any more than most plumbers are carpenters -- but, hey, that rarely stops them from cutting wood! )

I don't know if the concern is to insulate or to protect from expansion/contraction differences of concrete and the pipe. Around here we sleeve almost everything in a slab (waste lines, water lines, etc) with PVC. Pretty much whatever is available and cheapest. The last job I was on the plumber took 1/2 our foundation drain and used it to sleeve.

I bet that foam insulation could work for protection too, but I've never used it for that purpose.

sleeve

Polysleeve in red, blue, or black is available at ALL plumbing supply stores. Hot water is usually sleeved with a foam insulation to retain the heat and avoid expansion/contraction abrasion.

Thanks. I found it.