This product works great for my small local bakery to meet city requirements! Very easy to install with no plumbing experience! Product shipped fast and is GREAT quality!
Watts WD-4-THD 8 lb. Grease Trap with Threaded Connections
Item number 320wd4thdMFR number WD-4-THD
$206.49/Each
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Product Overview
- Prevents grease from entering plumbing and septic systems
- 11-gauge cold rolled steel body
- 4 GPM flow rate, 8 lb. grease capacity
- 2" threaded inlet & outlet, external cast iron flow control fitting
Works With
- Quantity
- 1/Each
- Shipping Weight
- 41.02 lb.
- Length
- 16 Inches
- Width
- 10 Inches
- Height
- 11 Inches
- Capacity
- 8 lb.
- Features
- Threaded Connections
- Flow Rate
- 4 GPM
- Inlet / Outlet Size
- 2 Inches
- Material
- Steel
- Type
- Grease Traps
Watts WD-4-THD Details
The Watts WD-4-THD 4 lb. grease trap with threaded connections prevents greasy substances from entering plumbing systems, septic fields, and waste water treatment facilities where they cannot be processed properly and could harm the environment.
Grease traps like the Watts WD-4-THD are often used with cooking or prep sinks, pot sinks, and commercial dishwashers in various types of commercial food service operations.
The Watts WD-4-THD grease interceptor is built to last, with a body made of 11-gauge cold rolled steel. The removable grease accumulating cover and baffle assembly are secured to the grease trap's body with a center mounted hex head and a gasket seal.
The Watts WD-4-THD grease trap has a grease capacity of 8 lb., a flow rate of 4 GPM, and may be recess mounted or floor mounted.
Overall Dimensions:
16"L x 10"W x 11"H
Flow Rate: 4 GPM
Grease Capacity: 8 lb.
Threaded Inlet & Outlet Size: 2"

PDI Certified
This item has been certified by the Plumbing and Drainage Institute (PDI), which promotes the advancement of Engineered Plumbing Products.
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Customer Reviews
Customer Photos & Videos
Customers Say
Customers appreciate this grease trap for its perfect size, ease of installation, and affordability. It meets health and city requirements across various food businesses, from bakeries to food trucks. While there's a mention of a minor issue with threading, the overall quality and functionality receive positive feedback. It's considered a cost-effective solution that performs well.
- grease
- trap
- great
- perfect
- small
- bakery
- easy
- purchase
- size
- works
This AI-generated summary was created from real customer reviews
Customer Photos & Videos
I was looking for a small grease trap for my hotdog shop. I found this one it was perfect and the health department was pleased.
We needed a grease trap for our 3 bay kitchen sink to satisfy the health inspector. Perfect size and works great. We would purchase this grease trap again.
My only complaint- one side was threaded wrong. However we still made it work. It’s the perfect size for our food truck! The price is great compared to others. It is heavy though.
When I decided to making my selection for the purchase of a grease trap with the measurements that I have and the limited amount of space I chose the watch WV for THD 8 pound grease trap with threaded connection it was small enough for the area that I had. It's well built and my my plumber, he loves it. It meets my city code for my use.
This grease trap is a nice affordable option to the same exact thing you would buy from a dealer for FAR more. Works like a charm
We just installed this grease trap and it seams to be working well. The flow reducer is a bit much and the basins take a while to drain. I opened it once it is definitely intercepting grease.
My plumber loved this. Easy for him to install. It came with all the parts so there was nothing extra for him to purchase. It is perfect size for my bakery. Does not take up a lot of room and easy lid to remove.
don't know much about grease traps, but i bought this for my small bakery. i guess is doing its job. i have been using it for almost a year with no major problem..i guess one of these days i'll have to clean it


