Buy Now: $
List: $.00

Part#: 4060-001-04

Intended Market: Fixed outlet required by local code
Flow control has been removed from this unit and the outlet connection is welded in a straight-through configuration only.
99% Efficiency Rating: Units must be piped in series.
Intended Market: Miami - Satisfies Miami DERM 99% efficiency requirements.

Technical Information

Flow Rates/Grease Capacities: 
20 GPM (1.3 L/s) / 70 lbs. (31.8 kg)
25 GPM (1.6 L/s) / 64.9 lbs. (29.4 kg)
Solids Capacity:  1.3 gal. (4.9 L)
Liquid Capacity:  10 gal. (37.9 L)
Weight:  39 lbs. (17.7 kg)
Installed:  Indoor, On-floor, Buried, Low-Profile Under-Sink
Schier GB1 indoor grease interceptor


20/25 GPM 
Great Basin™ High Capacity Grease Interceptor for Indoor Installation

The GB1 can be installed as a 20 or 25 GPM interceptor, and can be set on the floor or buried. Unit comes ready to connect to 2", 3" or 4" pipe.

Owners manual (.pdf)
CSI masterspec (.doc)

Customize this product:

Accessories Sold Separately:

Pumpout Port Kit

Buy Now: $
List: $166.00
Risers to Grade

Buy Now: $
List: $
Integral Membrane Clamping Collar Kit
(for recessed and suspended installations - requires riser FCR1)

Buy Now: $
List: $393.00


job name (optional)
job city (optional)
email address (required)
 Click here to have us contact you about this project.


This product can expose you to chemicals such as Lead, Carbon Black, N-Hexane, Methyl Isobutyl Ketone, Nickel, Bisphenol A, Naphthalene, Talc, Vinyl Chloride, Formaldehyde (gas) and Titanium Dioxide, which are known to the state of California to cause cancer and birth defects or other reproductive harm. For more information go to

Scroll To Top