Casta Diva Home
Casta Diva Home

Sleek, seamless, and easy to clean—CASTA DIVA one-piece toilets are made for modern bathrooms that don’t compromise on style.

Frequently Asked Questions--One Piece Toilet

Our toilets feature large-diameter trapways and high-efficiency flushing systems, reducing the risk of clogs. Some models include pressure-assisted or enhanced flush designs, ensuring reliable performance even in high-usage households. Smooth glazed surfaces make cleaning easy, and each flush is quiet, efficient, and hassle-free.

Our toilets feature several dual-flush combinations, including 0.9/1.28 GPF, 1.0/1.6 GPF, and 1.1/1.6 GPF, depending on the model. All of these are WaterSense certified, ensuring efficient water usage without compromising flush performance. This helps households save on water bills while meeting U.S. water conservation standards.

All of our one-piece toilets come with a standard 12-inch rough-in, making them easy to replace in most U.S. homes.


Our toilets are designed at a Comfort Height for easier sitting and standing, especially for seniors and people with limited mobility. While most of our models are close to ADA standard height, our CD-W10V model is fully ADA certified.

Most of our models feature an elongated seat for extra comfort. Some round options are also available for compact bathrooms.

All our models are one-piece toilets, offering a sleek look, easier cleaning, and fewer crevices for dirt to build up.

Most of our models feature a dual flush design, offering two flush options: a full flush for solid waste and a light flush for liquid waste. This ensures strong flushing performance while saving water efficiently.

Each toilet comes complete with all necessary installation parts, including a wax ring, floor bolts, and a soft-close seat. Installation can be handled by experienced DIYers, or you can hire a plumber for added convenience.