Atlantic Metalworks GI-20 - 20 lb 10 gpm Grease Trap Interceptor

Atlantic Metalworks GI-20 20 lb 10 gpm Grease Trap Interceptor

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Temporarily out of stock (Quick Ship - Ships Next Business Day!)
SKU: GI-20
4.9 stars, based on 10 reviews


The GI-20 grease trap from Atlantic Metalworks is a carbon steel grease interceptor certified by the Plumbing and Drainage Institute and capable of handling a drain flow of 10 gallons per minute. With a holding capacity of 20 lbs, the GI-20 is a good fit for many two compartment sinks; but, since multiple factors affect sizing, your local health & plumbing requirements will be the final rule. Hydromechanical grease interceptors like the GI-20 depend on a simple yet effective baffle system that enlists agitation and Bernoulli's principle to separate fats and oils out of the water and lift them to holding area. This keeps excess grease in your waste water from washing into your drainage pipes where it can clog your system and cause expensive plumbing issues. Speaking of guarding against expense, Atlantic Metalworks grease traps fit the two rules of thrift: 1) Don't pay too much 2) Buy something solid. Constructed of heavy carbon steel, these traps are anything but flimsy and their corrosion-resistant enamel coating helps guard against rust. As to price, a smart shopper like you already knows the GI-20 is one of the most affordable grease interceptors you can buy.

In a hurry? Check out these key benefits:

  • Capacity: 20 lbs.
  • Carbon steel construction
  • Gallons Per Minute: 10.
  • Inlet/Outlet Nominal Pipe Size: 2".
  • Includes an Air Intake and Flow Control.

Grease Trap Parts

Grease Trap Sizing

Check out these comparable grease traps from BK Resources and Ashland PolyTrap:

BK Resources BK-GT-20 Grease Trap - 20 lbs - 10 gpm

BK Resources 20lb Grease Trap

Carbon steel construction.

Check it out Alternative Models

Ashland PolyTrap grease interceptors

Ashland PolyTrap 20lb Grease Trap

Manufactured with specially chosen compound materials to prevent rust and corrosion.

Check it out Alternative Models


Standard Features

  • Both ends accept no-hub adapters for steel or plastic, t-vent pipe included.
  • Features no-skid cover w/ locking device.
  • Includes removable baffle.
  • PDI Certified.
  • Equipment guaranteed against defects in material and/or workmanship for a period of one year from the date of purchase.
  • For more information on grease trap history and function, check out this Blog Post: Grease Trap 101: History.
  • To download a cleaning log for your regular grease trap maintenance, click here: Grease Trap Cleaning Log.


Model GI-8 GI-14 GI-20 GI-30 GI-40 GI-50 GI-70 GI-100
Capacity (lbs) 8 14 20 30 40 50 70 100
Gallons Per Minute 4 7 10 15 20 25 35 50
Nominal Pipe Size (in) 2 2 2 2 3 3 3 4
Width (in) 16 18 22 22 1/4 24 1/4 27 3/8 30 1/4 32 1/4
Depth (in) 10 1/4 13 3/8 14 3/8 15 3/4 15 3/4 18 3/8 17 7/8 22
Height (in) 11 1/4 12 1/8 12 1/8 13 7/8 15 16 1/2 19 3/8 21 1/2
Weight (lbs) 40 54 59 69 78 98 128 175


Atlantic Metalworks stainless steel (formerly Prima Supply stainless steel) belongs to a line of family owned and operated businesses which has led the foodservice industry since 1947. They supply commercial grade economy stainless steel products, including tables, wall shelves, microwave shelves, pre-rinse faucets, grease traps, and sinks, all in various sizes to fit your restaurant's needs. Customer satisfaction is their goal, and they achieve this by offering low prices on all of their commercial grade economy stainless steel products.


Verified Buyer


5 / 5 stars

Your product it was so

Your product it was so good and great price thank you

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Verified Buyer


5 / 5 stars



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Verified Buyer


5 / 5 stars

Very Satisfied

Fast delivery and excellent product!

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5 / 5 stars


I got this item couple moths ago it a good steel material, look good and fit perfect for my grease trap hole and it functioning well so far. it is a 5 stars range.

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5 / 5 stars

Great Value

Shopped around and best price and shipping was free!!!

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5 / 5 stars

Great service

Perfect drop in for the old one, good fit, simple replacement...

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5 / 5 stars


Very nice product , best price , good quality and good shipping

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5 / 5 stars

Amazing Customer Service

I had ordered from another company and two weeks later they still didn't know when they would get it, let alone when I would receive it! I call Prima Supply and they were just amazing, they had the item I needed and they overnighted it to me and it actually arrived the very next day! Thank you!!

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5 / 5 stars

Impressed! First Time User

I was concerned ... because I have never bought from this group ... purchase was simple ... delivery beat expectations! Nicely done!

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4 / 5 stars

good grease trap! fast shipping!

My first grease trap, works well for my small kitchen. Solid construction, good price with free shipping. Only thing was the vent pipe didn't quite fit the pvc pipe, so I had to file it down some, only took about 15 minutes.

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