Purus' floor gullies for tiled floors include the Minimax 50, Mini Brage 50, Mini Brage 110 and the super low-level 59mm S-Series floor gully. We have a range of PK155 and PK200 patterned grates, as well as our tile adapter grates including the Tile Insert version.
https://www.purusgroup.com/products/mini-series-floor-gullies/
https://www.purusgroup.com/products/59mm-s-series-floor-gully/