The TZ-160 Trapzilla Grease Interceptor is rated for 35 GPM (2.21 l/s) and holds 167 pounds (21 gallons) of grease in a compact footprint. Perfect for replacing failing steel or concrete interceptors, the TZ-160 is manufactured out of durable polyethylene, meaning that it will outlast traditional interceptors made of inferior materials. The basic models come with a 22" Solid Top Cover that can be removed easily to clean out retained grease.