Great Basin GB2 Commercial Grease Trap – High Flow Rate & Large Capacity Model #4…

Great Basin GB2 Indoor Grease Interceptor: Capture & Prevent Kitchen Grease Buildup

Tired of greasy water backups clogging your drains? The Great Basin™ GB2 Indoor Grease Interceptor is your solution—designed to stop grease from reaching sewer lines before it causes costly blockages or unpleasant odors. Whether you’re a homeowner seeking reliable kitchen grease management or a contractor needing a dependable installation, this interceptor delivers peace of mind with smart features built for durability and convenience.

Capture More Grease, Longer
With a robust 131–128 lb. grease capacity (depending on model), the GB2 traps heavy grease buildup before it can harden or overflow into your plumbing. Its triple outlet design offers flexible installation options—whether you need to route pipes under sinks, mount on walls, or bury below grade. Compatible with 3” and 4” pipe systems via included plain-end adapters (plus 4” FPT connections), it seamlessly integrates with existing kitchen setups for minimal disruption.

Control Flow, Simplify Maintenance
Adjust water flow with the built-in Flow Control Cartridge™—engineered for easy removal and cleaning. Set it to 35/50 GPM to balance grease capture with water discharge, ensuring optimal performance without clogging. The rugged polyethylene tank resists impact and corrosion, outlasting cheaper plastic alternatives for long-term reliability.

Extend Your Setup with Confidence
For deeper sink installations, pair the GB2 with the FCR1 Field Cut Riser System—extending pipe reach up to 25” to fit your unique layout. No more compromising on placement; this interceptor works where others might not.

Install or Maintain with Ease
We’ve got you covered with everything you need: manufacturer-supplied installation manuals, owner’s guides, warranty details, and specs—all at your fingertips. Whether you’re DIY-ing the install or seeking professional support, Great Basin ensures you have the resources to succeed.

Stop fighting grease backups. Choose the GB2 Indoor Grease Interceptor for a smarter way to protect your plumbing and keep your kitchen running smoothly.