This is an O.K grease trap, but definitely do your research before selecting one. Our Health Department didn't help very much and it was difficult to know what size was necessary for our needs. We wind up having to clean this trap at least one time every 2 weeks or we start to get a bad odor in our back of house and cleaning it is not fun. We are definitely looking into other options as we move forward.
Watts WD-15-THD 30 lb. Grease Trap with Threaded Connections
Item number 320wd15thdMFR number WD-15-THD
$344.49/Each
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Product Overview
- Prevents grease from entering plumbing and septic systems
- 11-gauge cold rolled steel body
- 15 GPM flow rate, 30 lb. grease capacity
- 2" threaded inlet & outlet, external cast iron flow control fitting
Works With
- Quantity
- 1/Each
- Shipping Weight
- 73.5 lb.
- Length
- 22 Inches
- Width
- 15 Inches
- Height
- 14 Inches
- Capacity
- 30 lb.
- Features
- Threaded Connections
- Flow Rate
- 15 GPM
- Inlet / Outlet Size
- 2 Inches
- Material
- Steel
- Type
- Grease Traps
Watts WD-15-THD Details
The Watts WD-15-THD 30 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-15-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-15-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-15-THD grease trap has a grease capacity of 30 lb., a flow rate of 15 GPM, and may be recess mounted or floor mounted.
Overall Dimensions:
22"L x 15"W x 14"H
Flow Rate: 15 GPM
Grease Capacity: 30 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 generally find this grease trap to be a good fit for their needs, appreciating its ease of installation and maintenance. It is compatible with various sink sizes and is constructed for durability. While some users suggest researching to ensure the correct size for specific requirements, overall, it is recommended for those in need of a new grease trap.
- trap
- easy
- grease
- sink
- clean
- cleaning
- compartment
- definitely
- fits
- great
This AI-generated summary was created from real customer reviews
Customer Photos & Videos
I was happy with this purchase. It is a good product for a good price and I would purchase if you need a new grease trap with the connections.
A great grease trap, we enjoy the size and convenience of it being right next to our sink i would highly recommend this product to anyone interested.
This trap is just what we needed. It fits great under our 3 compartment sink. It was very easy to install with basic home depot parts. It is also easy to clean and inspect.
This grease trap is the perfect fit under our 4 compartment sink. It was very easy to plumb with the threaded inlet and outlets. It is built well and should last for years with an easy off cover for cleaning.


