That does make sense maybe they were talking as a regular pump for I don’t know how big of a tank.

It would be this one? Tech'n'Toy SunSun HW-603B 106 GPH 3-Stage External Canister Filter https://www.amazon.com/dp/B00CC6SCJQ/ref=cm_sw_r_cp_api_i_3qy8CbXXXB22H

I had that canister and it was defective ., ended up replacing with eheim classic (40g) for 12 g long. I found it to be a little underpowered honestly and think it would be good for yours - I also use this super affordable sun sun canister on a 10g and like it very much . Tech'n'Toy SunSun HW-603B 106 GPH 3-Stage External Canister Filter https://www.amazon.com/dp/B00CC6SCJQ/ref=cm_sw_r_cp_api_i_6t9yCb1XV3NZP