It is best to check the performance of your pump, the outlet hose of the skimmer is limited to 32mm.

No, it's 38 mm, but there's a connection to screw onto the suction grille.

It's OK

Directly next to the product is "Alternatives", either click on it or scroll down. Then you will see "alternative products in stock".

The skimmer can be attached to any pool.

Is simply pushed into the suction line inside the pool (instead of the suction nozzle). However, it is advantageous to remove it for bathing. But I can only recommend it, because the surface is always clean. I sewed a net made of curtain fabric into the strainer so that the paper filter is also less dirty.

The diameter of the hose connection is 38 mm.