Hartz UltraGuard Pro Topical Flea Tick

Hartz UltraGuard Pro Topical Flea Tick

What is the active ingredient?

Morning. Here it is on Amazon. There may be more information there.

https://www.amazon.com/Hartz-UltraGuard-Topical-Prevention-Puppies/dp/B0016HCN5G

Anyone know if this is like a generic equivalent of the more expensive “brand names” like K9 Advantix etc, or is this a different (lesser) product?