T&S set the quality standard in the industry for almost 50 years. The company is among the first commercial plumbing manufacturers to be registered by DQS to ISO 9001:2008 certification, the most stringent certification received by a corporation. Their castings are heavier commercial grade for quality and durability you can see and feel. Every product is inspected, not just a random sampling. And they are made with pride in the USA. They have the quality you can count on.