On the manufacturer's website:
L 1500: https://sunerzha.com/production/bath/design/b-karniz-dlya-vannoy-pryamoy-l-1500  /
L 1600: https://sunerzha.com/production/bath/design/b-karniz-dlya-vannoy-pryamoy-l-1600  /
L 1700: https://sunerzha.com/production/bath/design/b-karniz-dlya-vannoy-pryamoy-l-1700  /
L 1800: https://sunerzha.com/production/bath/design/b-karniz-dlya-vannoy-pryamoy-l-1800/ 

Branded color palette:
https://3dsky.org/3dmodels/show/palitra_firmennykh_tsvetov_sunerzha 

Collaboration with designers:
https://shop.sunerzha.com/designers/