The standard features of our products are designed to cater to various industries such as coffee, juice, smoothie bars, and more. The best part is that no plumbing is required! Now let's take a look at the key features of each model: 1. STS1300: This model comes with a manual control steam valve. 2. STA1300: The key feature of this model is the automatic temperature-controlled steam valve. 3. STP1800: This model is equipped with two manual steam valves and one hot water valve. When it comes to construction and performance, we ensure that all our products meet US standard hardware requirements. Additionally, we use brass flare fittings for enhanced durability. To prevent milk from entering the boiler, we have included a vacuum valve. Choose our products for their versatility, reliability, and high-quality construction.