Grease InterceptorsCast Iron
Cast iron fats, oils, and grease (FOG) interceptors built for commercial food service. Code-compliant designs in a range of capacities keep grease out of the sanitary sewer at restaurants, kitchens, and cafeterias, while the cast iron body stands up to hot wastewater and heavy daily use.
Product Specifications
Key Features
Common Applications
Grease Interceptor FAQs
Common questions about Josam Grease Interceptors
Josam grease interceptors are available in various capacities to meet different flow rates and local code requirements for commercial kitchen applications.
Yes, Josam grease interceptors are designed to meet plumbing code requirements for grease removal in commercial food service operations.
A grease interceptor is a plumbing device designed to intercept fats, oils, and greases (FOG) before they enter a wastewater disposal system, preventing sewer blockages. These cast iron units are intended for commercial food service waste streams such as kitchens, restaurants, and cafeterias.
Cleaning frequency depends on the interceptor size and usage, but typically ranges from weekly to monthly. Regular maintenance ensures proper function and code compliance.
A grease interceptor targets fats, oils, and grease (FOG) from commercial kitchens, while an oil/solids interceptor is built for industrial waste streams carrying petroleum-based oils, sand, and sediment from garages, car washes, and service bays. They address different contaminants and applications.
Where Grease Interceptors Are Required
Related product types
- Catch basins — related cast iron collection and separation products.
- Detention systems — downstream of FOG separation in the drainage train.
Common applications
- Restaurants and commercial kitchens — code-required FOG capture.
- Food processing — high-volume fats, oils, and grease handling.
- Breweries — organic-load pretreatment before the sewer.
Need Grease Management Solutions?
Josam grease interceptors provide code-compliant FOG removal for commercial kitchen applications. For industrial oil and sediment separation, see our cast iron oil/solids interceptors.