Grease Interceptor

Grease Interceptor


Remove FOG and Prevent Sanitary Sewer Blockages with GreaseTrooper®

Guaranteed Compliance

Our grease interceptors are UPC-listed, IPC-compliant, and built to city and municipal specifications

Stop Grease Blockages

Prevent excessive grease from causing blockages, damages, or sanitary sewer overflows

Remote Alarm

Notification alarm alerts the user of capacity, pump-out options, or notes time for maintenance.

Sized for Your Project

Sizes range from 500 to 20,000 gallons and are designed for meal and service considerations.

Durable Construction

Durable interceptor vaults can be made of precast concrete, stainless steel, or fiberglass.


ParkUSA’s GreaseTrooperÒ is the ultimate solution for commercial establishments looking to prevent excessive grease from causing blockages and sanitary sewer overflows. Our gravity grease interceptors (GGI) are available in a variety of options, including aboveground, belowground, precast concrete, stainless steel, or fiberglass construction. They are built to city and municipal specifications with sizes ranging from 500 to 20,000 gallons. Most models are Uniform Plumbing Code Listed (UPC) and we guarantee compliance with all plumbing codes and regulations.

Our GGI’s feature monolithic baffles and resilient pipe connections, ensuring watertightness and preventing FOG (fats, oils, and greases) from disrupting wastewater treatment operations. Available interior and exterior protective lines provide additional protection against corrosion and abrasion.

The GreaseTrooper can be equipped with a remote maintenance alarm and pump-out options, ensuring that the system is always in proper working order. Our GGIs are turnkey and pre-piped for quick delivery and easy installation, saving you time and money.

How It Works

The GreaseTrooper® GGI, also known as a grease trap, operates on the principle of buoyancy. Animal fats and vegetable oils have a lower density and naturally float on top of water. When wastewater enters a grease interceptor, the flow velocity is reduced, allowing the water to cool and separate into distinct layers. During this process, the grease separates and rises to the top of the interceptor, where it is captured using a series of baffles. Solids settle at the bottom, while clear water exits via an outlet baffle.

Over time, accumulation of solids and grease will inevitably occur. When the grease interceptor reaches its rated maximum capacity, the grease level in the interceptor will increase. When the grease layer reaches 12” thick, an alarm sensor will alert the operator to contact a licensed wastewater disposal company to pump the interceptor.

To ensure optimal performance of the grease interceptor, it is recommended to install a sample well downstream. This allows for the collection of wastewater samples that can be tested in a laboratory to measure concentration levels of biochemical oxygen demand, total suspended solids, and FOG. These characteristics can determine the grease interceptor’s performance.


About the Precast Concrete

The GreaseTrooperÒ GT is an industry-standard interceptor system highly suitable for intercepting FOG from entering the public sanitary sewer system. It is frequently used in restaurants, food processing plants, and commercial kitchens. Model GT is a GGI constructed of precast concrete with multiple compartments, internal baffles, piping, and an interceptor maintenance alert system. This model is designed for direct burial and includes heavy-duty access covers for cleaning and maintenance. This interceptor is ideal for applications with periodic tank pumping and no onsite maintenance. This grease interceptor can be UPC Listed and is available in different sizes and configurations to meet most application demands and municipal codes.

See it in Action


Grease Interceptors are commonly used in commercial applications that produce large amounts of grease that can cause blockages and sanitary sewer overflows.


Restaurants produce FOGS that are susceptible to entering the public sewer system and causing blockages that can lead to costly fines and damage.

Institutional Kitchens

Hospitals, schools, and prisons typically produce a large amount of FOG, which can cause significant problems if it enters the public sewer system.

Food Processing Plants

A common byproduct of food processing facilities is FOG. Our GGI prevents FOG from contaminating wastewater treatment systems.

Industrial Facilities

Industrial facilities such as manufacturing plants, refineries, and chemical processing plants produce a large amount of wastewater that may contain FOG and other contaminants that must be removed before discharge into the public sewer system.

Specs & Docs


Grease Interceptor Model GT-500 thru 750 – Concrete, Two Compartment, Direct-Bury


Grease Interceptor Model GT-1000 thru 2000 – Concrete, Two Compartment, Direct-Bury


Grease Interceptor Model GT-2500 thru 6000 – Concrete, Two Compartment, Direct-Bury


Grease Interceptor Model GT-7000 thru 12000 – Concrete, Two Compartment, Direct-Bury


Grease Interceptor Model GT-13000 thru 15000 – Concrete, Two Compartment, Direct-Bury


Grease Interceptor Model GTF-500 thru 5000 – Fiberglass, Free Standing


Grease Interceptor Model GTF3-4000 thru 14000 – Fiberglass, Direct-Bury


Grease Interceptor Model GTF-500 thru 5000 – Fiberglass, Direct-Bury


Grease Interceptor Model GTS-500 thru 10000 GT – Stainless Steel, Free-Standing


Grease Interceptor Model GTX-500 thru 750 – HDPE Lined Concrete, Two Compartment, Direct-Bury


Grease Interceptor Model GTX-1000 thru 2000 – HDPE Lined Concrete, Two Compartment, Direct-Bury


Grease Interceptor Model GTX-2500 thru 6000 – HDPE Lined Concrete, Two Compartment, Direct-Bury


Grease Interceptor Model GTX-7000 thru 12000 – HDPE Lined Concrete, Two Compartment, Direct-Bury


Grease Interceptor Model GTX-13000 thru 15000 – HDPE Lined Concrete, Two Compartment, Direct-Bury


Grease Interceptor Model MGT, Hydromechanical Grease Interceptor, 4 Thru 100 GPM


Grease Interceptor Model MGTL, Hydromechanical Grease Interceptor, 150 Thru 500 GPM


Sample Well Model SWB – Concrete, Direct -Bury, with Equal Inverts


Sample Well Model SWB – Concrete, Direct -Bury, with Unequal Inverts


Sample Well Model SWS – Stainless Steel


Sample Well Model SWBP – Concrete/HDPE


Sample Well Model SWBP – Concrete/HDPE with pH Sensor

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