mozes zmenit len nadrzku, malo by to byt kompatibilne s vylevkou

https://www.brico.be/fr/salle-de-bain-cuisine-interieur/toilettes/reservoirs-wc/reservoir-avec-lave-mains-wirquin-iseo-blanc/5468189

na slovenku mozno Kaufland, nemecky to ma v eshope (btw cekuj rozdiel ceny :)))

https://www.kaufland.de/product/351496610/


alebo mozes ist all-in ked sa ti s tym nechce srat, ale ta cena, no:

https://www.brico.be/fr/salle-de-bain-cuisine-interieur/toilettes/packs-wc/pack-wc-a-poser-allibert-combi-i-sortie-h-i-avec-lavabo-reversible/5481053


edit: pozeram ze aj nemecky amazac to ma, neviem ci dorucuje na slovensko
https://www.amazon.de/-/en/Wirquin-50720090-Iseo-Pillar-Tank-Bottom/dp/B00TOMVYQO