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Product Overview

  • Prevents grease from entering plumbing and septic systems
  • 11-gauge cold rolled steel body
  • 50 GPM flow rate and 100 lb. grease capacity
  • 4" inlet & outlet
UPC Code:098268987485
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Protect your plumbing with this Watts WD-50 100 lb. grease trap.

The Watts WD-50 100 lb. grease trap prevents greasy substances from entering plumbing systems, septic fields, and wastewater treatment facilities where they cannot be processed properly and could harm the environment. Grease traps like this one are often used with cooking or prep sinks, pot sinks, and commercial dishwashers in various types of commercial food service operations. Additionally your local health code may require one for your application.

  • PDI Certified

    PDI Certified

    This item has been certified by the Plumbing and Drainage Institute (PDI), which promotes the advancement of Engineered Plumbing Products.

Intercepts and Separates Grease

A flow restrictor on the inlet side of the interceptor slows incoming effluent and redirects it through baffling inside the grease trap. As the flow is gradually slowed, substances lighter than the water accumulate inside the trap above the static water line. It is PDI (Plumbing & Drainage Institute) Certified and maintains 90% separation efficiency, up to its rated grease retention capacity.

100 lb. Capacity, 50 GPM

This grease trap can hold up to 100 lb. of grease at a time, and can accept a flow rate of up to 50 GPM.

4" Inlet and Outlet

A 4" inlet and outlet size makes it easy to connect this grease trap to your facility's plumbing lines.

Durable Construction

This grease trap features a body made from 11-gauge cold rolled steel with an oven-cured, acid-resistant baked gray epoxy coating. Other standard features include a solid steel cover with gasket, a removable baffle assembly, a deep seal trap with cleanout, no hub connections, and an external cast iron flow control fitting (flow restrictor).

Compare to Other Products

Overall Dimensions:
  • Length:32 Inches
  • Width:22 Inches
  • Height:21 1/2 Inches
  • Capacity:100 lb.

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Watts WD-50

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Overall User Rating

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5.0 stars from 3 reviews


3 reviews rated this 5 out of 5 stars.

0 reviews rated this 4 out of 5 stars.

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Frequently Mentioned

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  • sturdy
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Customer Reviews


I bought this grease trap because our city increased the flow rate and gallon minimums for all grease traps. The plumber said it was well constructed and an easy install. I don't know much about plumbing but its extremely sturdy. You're going to need at least two people to move this and probably a dolly or pallet jack to get it inside, Keep in mind the dimensions of this large unit you may have to raise the height of your sink to accommodate the mandatory 1" air gap to prevent back flow into the sink

Marisa from Cherry Market on 08/09/2019

Haven't had any problems with this so far. Doesn't spill over or leak out around the top and doesn't have any smell that leaks out.

Jennifer M. from Honey & Hive Baking & Catering Co. on 06/23/2018

Its huge!! Really sturdy and really functional another awesome product purchased from this website. Other company got smaller for double if is not triple the price

Alessandro S. from Sanna Brothers Llc on 04/15/2017

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