The TZ-1826-ECA-6 In-Ground Trapzilla99 Grease Interceptor is ASME/PDI rated for 100 GPM (6.31 l/s) and holds more than 1,826 pounds (248 Gallons) of grease in a 274-Gallon footprint. Unlike traditional interceptor designs, the TZ-1826-ECA-6 is capable of holding more than 90% of its internal volume in grease and solids before it begins to lose efficiency. Perfect for replacing failing steel or concrete, the TZ-1826-ECA-6 is manufactured out of durable polyethylene, meaning that it will outlast traditional interceptors made of inferior materials. The in-ground model comes with an 18" long single-piece extension collar and 22" Solid Top Cover that can be removed easily to clean out retained grease.