Shower channels
Floor Drain
Modern Drain
Shower Traps
Shower Drain
link:
https://www.waterworks.com/us_en/catalog/product/printer/id/46787/ 

https://bg85932835.en.made-in-china.com/product/abonmhwJCNcC/China-Floor-Drain-Grate-05010201-.html 

https://www.alibaba.com/product-detail/MONDEWAY-HOT-SALES-oem-high-quality_60521616162.html?spm=a2700.7724857.0.0.24763e80obo8nN 

https://www.alibaba.com/product-detail/24-Inch-High-Water-Flow-Removable_1601240556159.html?spm=a2700.details.popular_products.16.f2494558PKZeCQ 

https://www.alibaba.com/product-detail/Modern-bathroom-water-grate-anti-odor_1600890459338.html?spm=a2700.7724857.0.0.31aa6af212EUtJ