GT9 – 40 Litre Stainless Steel Grease Trap


£169.00 ex. VAT | £202.80 inc. VAT

12 in stock

12 in stock

Great News! Order Before 2pm & Get This Product By 05-12-2023



One of our most popular under sink grease traps. Measuring 380mm x 380mm x 285mm and made from kitchen grade 304 stainless steel, this is the ideal size to accommodate the flow rate of a single bowl commercial sink.  Compact and easy to access for cleaning this under sink grease trap starts collecting fats, oils and grease (FOG) from the moment it is fitted. 


This is considered suitable for food service establishments producing 50-100 meals per day, or for the flow rate of one sink bowl. Two lower valves enable quick drain-offs so cleaning out and wiping the inside of the trap is quick and easy. If you have more than one commercial sink bowl, why not try our larger GT18 or GT26 models. 



Under Sink Grease Trap Specification:

  • 304 catering grade stainless steel
  • Flow Rate (Litres Per Minute) 45
  • 40 Litre Capacity
  • Height to Bottom of Inlet: 212mm 
  • Height to Bottom of Outlet: 172mm
  • 50mm (2”) Inlet/Outlet.
  • 9kg Grease Capacity
  • Suitable for 1 commercial sink bowl
  • 5 Year Warranty
  • Minimise Drain Cleaning Call-Out Charges
  • Improved Wastewater Discharge Quality
  • Air Tight Seal – Eliminate Unwanted Odours
  • Uses Standard Multi-fit Connections
  • Designed, supported and dispatched from the UK
  • Uses Standard Multi-fit Connectors (sold separately in our shop)
  • Model SKU: GT9
  • Size 380 x 380 x 285mm (w x l x h)
  • Inlet / Outlet Size (mm) 50
  • Grease Capacity (kg) 9
  • Capacity to Inlet Outlet (L) 40
  • Meals Per Day: 50-100

Under Sink Grease Trap Stainless Steel

Our perfectly sized under sink grease trap for a single bowl commercial sink.  Measuring 380mm x 380mm x 285mm high, this excellent value stainless steel under sink grease trap is compact and yet highly effective. Moreover, this commercial fat trap can be installed underneath your commercial sink on the floor or a shelf.  Grease Trap Store has a wide range of stainless steel grease traps that can help you control and collect fats, oils and grease (FOG’s) before entering the drains. 

Epoxy under sink grease trap

Epoxy fat trap for under sink

Any Kitchen Manager or food service business owner knows, preventing problems before they occur is usually less costly!  And this is certainly the case when it comes to drains – nobody wants blockages, least of all in the middle of service. Under sink grease traps are also knows as passive or gravity traps are typically designed to fit neatly underneath sink bowls.  

Catching FOG’s quickly before having change to solidify in drains can be the difference between a smoother food service or stress and hefty bills.  Furthermore, An accurately sized commercial grease trap is an important part of a well functioning commercial kitchen.  Keeping drains flowing freely by having a clear grease management procedure is very important. Particularly when producing hot food as this is both essential and mandatory in accordance to building regulations.  

Grease Trap Store are proud to offer a range of sizes of gravity-fed under sink grease traps.  Our high quality fat traps are made from catering grade 304 stainless steel, which is robust and long lasting. Moreover, we offer a five-year manufacturer’s defect warranty. Furthermore, it offers value for money and peace of mind. 

Stainless Steel Under Sink Grease Trap – Amazing Value

In difficult times, it can be hard to find available funds for grease management. At Grease Trap Store we understand you want to be compliant without spending a fortune. That’s why we have designed a range of economical commercial grease traps.  Specifically created to fit underneath your kitchen sink, these are one of the most affordable ways to catch FOG’s.  Many people value budget under sink grease traps as they are ‘powered’ by gravity, not electricity.  

All passive grease traps work by using the gravitational flow of waste water.  This is effective at collecting FOG’s and means less expensive to purchase.  Not only is it cheaper to buy an under sink passive grease trap, but it’s virtually free to run it, too! With no filters or motors to wear out and replace, your stainless steel fat trap will last years.  Because under sink grease interceptors do not require power, they are very flexible and can be situated wherever there is a need. Simply pipe down to the trap and let gravity do the work!  

How Do Passive Grease Traps Work?

Our catering grade stainless steel fat traps have carefully positioned internal panels which channel water around the trap.  This actively helps separate FOG’s from waste water.  As the FOG’s rise to the surface of the trap, the panels help retain this in the central collection chamber for later retrieval.  Meanwhile, wastewater navigates around the panels and up in to the outlet for exit in to the drain. This cleaner wastewater is also known as ‘grey water’ as it’s still dirty but safer.  To help extend cleaning periods, consider our grease trap cleaner which can naturally reduce FOG build up and prevent unwanted odours. 

One of the most important parts of having an efficient and functional grease trap is to ensure it is correctly sized.  Furthermore, if an under sink grease trap is too small, this will quickly back up into your sink. If a grease trap is far too big, it can reduce the efficacy of the trap by now allowing sufficient volume of water to collect and the separation process to play out.  Both situations can be avoided by calculating what size grease trap in advance.  Moreover, consider what size is needed by ascertaining how many sink bowls will feed into the under sink trap.

If you have two commercial sink bowls or more, consider a larger grease trap such as our GT18 or 100 litre GT26

Stainless Steel Passive Grease Fat Trap For Under Sink Installation

Grease Trap Store is based in North West England and is proud to support our customers with proactive aftercare service. Once you purchase your under sink grease trap, we recommend using a local trusted plumber to connect to your sink.  To allow for regular cleaning and fat draining,  we have incorporated two lower drain valves at either end.  This enables easy and total draining of the grease trap by staff or contractors.

If you would like to discover what other stainless steel commercial equipment compliments our grease traps, see our catering sinks, work prep tables or our wall shelves!

This stainless steel under sink Grease Trap complies with Building Regulations 2.21 Part H and comes with a five-year manufacturer defect warranty.


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