The cleaner is probably a TriVac 500, which uses a separate booster pump.
The main pump is a Tristar VS.
www.hayward-pool.com
The main pump is a Tristar VS.
TriVac™ Series | Cleaners | In Ground Pool Cleaners - Hayward Pool Products
Designed with patented AquaDrive® technology, TriVac 500 automatic pressure cleaner is powered by water-jet propulsion, carefully and efficiently navigating the pool floor, walls and coves.