Drain-Net is your leading online supplier for metal grease traps. Commercial cooking area such as restaurants, schools and resort are required to follow the building codes to install the grease traps in their sinks, dishwashers and floor drains that prevent the grease to run down into the main drain. The main purpose of the grease traps is stopping the grease of cooking, oil and fats while letting all the other liquid waste run down into the main drain system. Commercial companies make these grease traps and classify them that they stop the grease and all the other stubborn obstructions into the main sewer. It is very important to separate liquid waste from the greasy matter, and grease trap done this job perfectly. And these grease traps are essential for the commercial kitchen, because if they release grease, oil and fats in the drain that can take the form of solid waste that obstruct the drain and plumbing system. Select sizes up to 50 GPM are PDI Certified to manufacturer.