Zurn GT2701-20-3NH Low Profile Grease Trap - 20 GPM, 40 lb, 3" No-Hub
Zurn GT2701-20-3NH — 20 GPM Low-Profile Steel Grease Interceptor
The Zurn GT2701-20-3NH is a low-profile, acid resistant coated fabricated steel grease interceptor rated at 20 GPM with 40 lbs. of grease capacity and a 15 gallon liquid volume. Standing just 10" tall with 3" no-hub inlet and outlet connections set low on the body, it fits beneath a pot sink or prep sink where a standard-height trap will not, and it ships complete with an external flow control fitting, an internal air relief by-pass and a gasketed non-skid cover.
Key Features of the GT2701-20-3NH
Everything in the GT2701-20-3NH is aimed at one job: catching fats, oils and grease right at the fixture, in a space where a taller interceptor simply will not fit.
10" Low-Profile Body
At 32-3/8" long, 20-3/4" wide and only 10" high, the GT2701-20-3NH tucks under a pot or prep sink where vertical clearance is tight, so grease is captured at the source instead of travelling down the line.
Acid Resistant Coated Steel
The fabricated steel body carries an acid resistant coating on both the interior and exterior, protecting the tank from aggressive kitchen waste inside and wet, freshly mopped floors outside.
3" No-Hub Connections, Set Low
The -3NH suffix means 3" no-hub inlet and outlet connections, regularly furnished in the low position with the centerline 3-1/8" above the floor, ready to join no-hub drain piping with standard couplings.
External Flow Control Fitting
Every unit ships with an external flow control fitting that holds incoming flow to the rated 20 GPM, giving grease time to separate instead of being flushed past the baffle when a full sink drains.
Baffles & Visible Trap Seal
A removable pressure equalizing / flow diffusing inlet baffle calms the incoming stream, a fixed bottom outlet baffle draws clarified water from beneath the grease layer, and the double wall trap seal stays visible for inspection.
Air Relief By-Pass & Bronze Cleanout
An internal air relief by-pass vents trapped air to protect the trap seal, while the bronze cleanout plug and gasketed non-skid cover with center tie-down keep service quick and odors contained.
Sizing note: grease interceptors are selected by flow rate. Under the common PDI sizing method, a fixture’s volume in gallons is multiplied by 75% to get the actual drainage load, then divided by a 1- or 2-minute drain time to find the GPM required — the GT2701-20-3NH is the right fit when that figure comes out at 20 GPM or less. Your local plumbing code or FOG authority has the final say on sizing and placement.
Ideal Applications
With 20 GPM of flow and 40 lbs. of grease storage in a 10" tall body, the GT2701-20-3NH is a point-of-use interceptor for a single sink or a small group of fixtures.
Zurn GT2701-20-3NH Specifications
| Brand | Zurn |
|---|---|
| Model | GT2701-20-3NH |
| Series | GT2701 Low Profile Grease Interceptor |
| Type | Low-profile hydro-mechanical grease interceptor (grease trap) |
| Rated Flow | 20 GPM [76 LPM] |
| Grease Capacity | 40 lbs. [18 kg] |
| Liquid (Water) Capacity | 15 gallons [57 L] |
| Inlet / Outlet Size | 3" [76 mm] |
| Connection Type | No-hub |
| Inlet & Outlet Position | Low position, regularly furnished |
| Inlet / Outlet Centerline Height | 3-1/8" [79 mm] from floor |
| Overall Length | 32-3/8" [822 mm] |
| Overall Width | 20-3/4" [527 mm] |
| Overall Height | 10" [254 mm] |
| Approx. Weight | 102 lbs. [46 kg] |
| Material & Finish | Fabricated steel, acid resistant coating inside and out |
| Cover | Gasketed, non-skid, secured with center tie-down assembly |
| Included | External flow control fitting, internal air relief by-pass, bronze cleanout plug, removable pressure equalizing / flow diffusing inlet baffle, fixed bottom outlet baffle, visible double wall trap seal |
| Standards | Designed to PDI G-101 specifications |
| Installation | Under a sink or anywhere vertical space is limited |
| Origin | Made in the U.S.A. |
Compare the Zurn GT2701 Low-Profile Series
The GT2701 line comes in three sizes built the same way. If your sizing calculation lands above 20 GPM, the two larger models add capacity and move up to 4" connections.
Frequently Asked Questions
What does the model number GT2701-20-3NH mean?
GT2701 is Zurn’s low-profile grease interceptor series, 20 is the rated flow in gallons per minute, and 3NH stands for 3" no-hub inlet and outlet connections. Read together, the model number describes a 20 GPM interceptor with 40 lbs. of grease capacity, a 15 gallon liquid volume and 3" no-hub piping connections.
Is the GT2701-20-3NH the same unit as the GT2701-20-3IP?
It is the same GT2701-20 low-profile body — 20 GPM, 40 lbs. of grease capacity and 32-3/8" x 20-3/4" x 10" overall — and this listing was previously shown under the GT2701-20-3IP model number. The current GT2701-20-3NH is furnished with 3" no-hub inlet and outlet connections; if your piping calls for a different connection type, contact us before ordering.
Can the GT2701-20-3NH be installed under a sink?
Yes — that is what the low-profile design is for. At 10" high, with the inlet and outlet centerline 3-1/8" above the floor, it fits beneath typical pot and prep sinks where a full-height trap will not. Leave clear access above the cover, because it has to be opened for routine cleaning.
Does the GT2701-20-3NH come with a flow control fitting?
Yes. It ships with an external flow control fitting that limits incoming flow to the rated 20 GPM. Without it, a full sink draining at once can push grease straight through to the outlet, which is why most plumbing codes call for a flow control device ahead of a hydro-mechanical interceptor.
How often should a 40 lb. grease trap be cleaned?
A common rule of thumb is to clean the interceptor when grease and solids reach about 25% of its capacity — roughly 10 lbs. in this 40 lb. unit. In many small kitchens that works out to weekly to monthly service, but menu, volume and your local FOG ordinance set the actual interval.
Is the Zurn GT2701-20-3NH made in the USA?
Yes. The GT2701-20-3NH is made in the U.S.A. by Zurn, with a fabricated steel body finished in an acid resistant coating inside and out.
| Brand | Zurn |
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| SKU | GT2701-20-3NH |
| Brand | Zurn |
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