Choosing the right grease trap helps protect plumbing, reduce odor, and simplify restaurant or home kitchen maintenance. This guide highlights five reliable options, with attention to material, capacity, installation, and seal design. Each model is designed to separate fats, oils, and grease (FOG) from wastewater before it enters the drain, helping compliance and preventing blockages.
| Product | Material | Capacity | Type | Fit |
|---|---|---|---|---|
| Beseder Plastic 5 GPM Under Sink | Plastic | 5 GPM | Under-sink | Under sink, home/kitchen |
| BEAMNOVA Stainless Steel 25lbs | Stainless Steel | 25 lbs | Under-sink | Restaurant/home |
| Wadoy 8 lbs Under Sink | Stainless Steel | 8 lbs | Under-sink | Home/small business |
| DYNAMI 8-10Lbs | Stainless Steel | 8-10 lbs | Under-sink | Restaurant/home |
| Beseder 20 lb Plastic Under Sink | Plastic | 20 lbs | Under-sink | Restaurant/canteen |
Beseder Plastic 5 GPM Under Sink: Practical For Small Kitchens

The Beseder 5 GPM plastic grease trap is designed for compact spaces under a kitchen sink. It uses thicker plastic walls to resist rust, leaks, and deformation, with a 1/4-inch wall thickness for durability. Its overall dimensions are crafted for easy under-sink placement, and it handles multiple oil types — mineral, animal, vegetable, and emulsified oils — through a multistage cleaning approach.
BEAMNOVA Stainless Steel Interceptor, 25lbs

BEAMNOVA’s grease trap offers a larger capacity with a stainless steel construction. It includes an outlet pipe, user manual, and required accessories, with improved welding for smooth ports, rounded corners to prevent scratches, a rubber seal on the cover to prevent leaks, and a sealed faucet. It is designed for straightforward installation and reliable leakage prevention, suitable for higher-demand kitchens.
Wadoy 8 lbs Under Sink Grease Trap

Wadoy’s 8 lbs grease trap emphasizes durable stainless steel construction with tight seals to prevent leaks. It explains the fundamental working principle: inflowing wastewater carries fats, oils, and solids, which separate as the water cools. The unit incorporates a threaded outlet connection for secure piping and an inner sealing ring on the lid, backed by a bolt-lock design to maintain a leak-free system across daily use.
DYNAMI 8-10Lbs Under Sink Grease Trap

DYNAMI’s grease trap features stainless steel construction designed for durability and a four-stage filtration system to efficiently separate oil from water. An automatic shut-off device adds safety in outdoor or rain-prone installations, enabling the unit to pause operation automatically when weather conditions require it. The design focuses on high efficiency and long service life in busy kitchens.
Beseder 20 Lb Plastic Under Sink Trap

This Beseder model uses a plastic construction with a 1/4-inch wall thickness for durability and resistance to rust and corrosion. With a larger capacity and 10 GPM flow handling, this trap is well-suited for higher-volume kitchens such as cafes and canteens. It supports multistage cleaning to handle emulsified oils and varied grease contents effectively.
40 lbs Plastic Under Sink Grease Trap

Designed for heavier operation, this plastic grease trap offers significant capacity and a multi-channel filtration approach to minimize solids and FOG reaching the drain. It emphasizes a leak-free seal through threaded connections and rubber rings around covers and outlets, making it suitable for larger kitchens, canteens, and coffee shops requiring robust performance.
BEAMNOVA 8lbs Stainless Steel Interceptor

BEAMNOVA’s compact interceptor emphasizes practical design with locking side levers to prevent leakage and a lifting handle for easy transport. It includes an outlet pipe, user manual, and necessary accessories. Its four-sided sealing approach and rounded corners reduce wear and provide stable operation in home kitchens or small restaurant settings.
Buying Guide
Key considerations when selecting a grease trap:
- Capacity and flow rate: Choose a unit that matches kitchen output to avoid frequent maintenance and to maintain efficient separation of FOG.
- Material: Plastic traps are lightweight and corrosion-resistant but may be less durable than heavy-gauge stainless steel for high-traffic environments; stainless steel models excel in durability and hygiene.
- Inlet/outlet configuration: Ensure the trap’s connections align with existing drain plumbing and that installation can be carried out on a flat, stable surface.
- Sealing and leakage prevention: Rubber gaskets, threaded connections, and locking mechanisms reduce the risk of leaks, particularly in high-moisture areas.
- Maintenance features: Multistage filtration, accessible cleanouts, and easy-to-remove baskets simplify periodic servicing and extend life.
- Installation location: Under-sink traps save space but require proper clearance for service access; countertop or ceiling-mounted options may suit certain layouts.
- Local regulations: Ensure your choice complies with local wastewater and environmental guidelines, including discharge limits and inspection requirements.
- Cost of ownership: Consider initial price, maintenance frequency, filter replacement, and potential need for professional installation.
Overall, the best grease trap for a kitchen balances capacity with reliability, supports a straightforward installation, and provides effective separation of fats, oils, and grease to protect drainage systems.