Not sure if there's some significant difference (the name is the same), but you can get the white 10pk for $9.99 too on this separate listing:
https://www.lowes.com/pd/Hubbell-10...uplex-Wall-Tamper-Resistant-Outlet/1000050833
Lots of differences. The ones you linked to are residential grade whereas the other ones are commercial grade. The residential grade ones are side wire and backstab connections, whereas the commercial grade ones have backwire (AKA screw and clamp) connections. The residential grade ones are made of a light gauge plastic whereas the spec grade are nylon.
You can read a thorough comparison of residential and commercial grade outlets here.
When comparing a residential grade and commercial grade outlet, the commercial grade ones are noticeably heavier and much more solidly built.

That might be the best deal ever in the Lowe's thread? At least top 10.