I have a Glacier Bay kitchen facet and would like to replace the spray head. This one is fairly old, but the new style head will be fine.

Check the plumbing section at Home Depot, it's their brand. Most thread on heads are the same thread pitch and diameter..

Most of those parts are universal you can buy them at Lowe's or Home Depot.
But as answered Home Depot handles this brand.
Good Luck, Tom

Yup! For an older style glacier bay faucet you should simply need the UNIVERSAL fitting spray head... simply swaps out the head. Here, loosen the knurled nut at he base of the spray head and then remove the washers and the little C-clip... reverse the order to install the new head.

Good luck!

Mark