This website requires Javascript for some parts to function propertly. Your experience may vary.

FCR1 | Riser for Below Grade Grease Interceptors


Field Cut Riser


Online: $346.50

List: $495.00

For use with buried indoor models GB1, GB2, and GB3

Buy Now

Product Description

Field Cut Riser for Buried Indoor Models with 21" Covers

The field cut riser system allows for easy on-site adjustability to bring your buried grease interceptor to grade by simply trimming unneeded height off the riser bodies. The ease and flexibility of this accessory eliminates job site delays while waiting for custom-built risers, ensuring projects finish on time and on budget. Learn more.


  • Lightweight polyethylene

  • Stack a maximum of two FCR1 risers to create a total height of 25" (sold individually)

  • Topmost riser may be cut based on your determined riser height

Need Documentation?

Compatible Products

GB1 product image
70 lbs at 20 GPM
64 lbs at 25 GPM
GB2 product image
130 lbs at 35 GPM
127 lbs at 50 GPM
GB3 product image
272 lbs at 50 GPM
175 lbs at 75 GPM

Frequently Asked Questions

Can the Great BasinĀ® indoor models be buried flush with the floor without using a riser?

These units can be buried flush with the floor without a riser, but it is recommended that they be located out of the traffic path. If the unit is placed in the traffic path, the GB2 and GB3 must have the gusset support kit (SGK2 / SGK3) installed inside the unit.

What are the minimum and maximum riser heights of a buried Great BasinĀ® indoor unit?

The minimum riser height is 2 1/8" (built in) and the maximum heigh for field cut risers is 25," which is equivalent to two FCR1 risers (sold separately).

Scroll To Top