Grease Trap NZ — Clog-Free Drains, No Costly Plumbing Bills
Passway™ grease traps for homes and commercial kitchens — capture fats, oils and grease before they block your drains, septic or greywater system.
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- Supplied & supported in NZ by WCTNZ®
- Range independently tested to BS EN 1825-1
- For homes & commercial kitchens
Prevent Costly Plumbing Issues
By capturing and containing fats, oils and greases (FOG), Passway™ grease traps for New Zealand homes and commercial kitchens prevent blockages and costly plumbing repairs in sewer mains, septic and greywater systems. With Passway™ grease traps, you can avoid the headache of dealing with clogged drains and focus on what you do best.
Maintain Hygiene and Safety
A clean and well-maintained grease trap reduces the risk of foul odours, bacteria growth, and pests in your kitchen. Ensure a healthy environment and keep your kitchen safe and fresh!
Compliance with Regulations
Passway™ grease traps are designed to meet and exceed industry standards and your council's trade-waste requirements, ensuring that your kitchen operates within the law. Avoid penalties and maintain a positive reputation within your community.
Ready to streamline your grease management system? Click below to order your Passway™ grease trap today and experience the benefits of a clean and efficient kitchen!
At Home or a Commercial Kitchen?
Every grease trap does the same job — keeps fats, oils and grease out of your drains. What you need from it depends on where it’s going. Pick yours.
Protect your drains and your septic or greywater system
A residential grease trap catches fats, oils and grease under the bench, before they build up in your pipes — so there are no blockages to clear later and less load on a septic or greywater system.
- Compact under-bench models for the home: M-43F and M-43E, Ø50mm pipe
- Improves the performance of septic and greywater systems and helps prolong their life
- Suits town-supply homes as well as tiny homes and off-grid kitchens
- A sight glass lets you check the grease level at a glance
Handle high FOG volumes and meet your council’s trade-waste rules
Cafés, restaurants and food premises send far more fat, oil and grease down the drain. Councils set trade-waste rules for how much can enter the drains, so a commercial kitchen grease trap needs the capacity to keep up.
- Higher-capacity M-43D, Ø100mm pipe, for busy commercial kitchens
- M-43E for cafés and light food-service where the loading suits
- Designed to meet industry standards and your council’s trade-waste requirements
- Range independently tested to BS EN 1825-1
How it works
Passway™ grease traps are designed to effectively separate fats, oils, and greases (FOG) from wastewater. Our grease traps utilize a multi-layered filtration process, ensuring optimal grease management in your kitchen. Here’s how it works:
Cooling Capability
The grease trap cools greasy water, causing fats, oils, and greases to solidify and separate, preventing clogs
Layer Separation
It separates FOG from water and solid debris, ensuring smooth water flow and preventing accumulation
Grease Collection
The collected grease is stored in an accessible compartment for easy maintenance and to prevent grease buildup
Advanced Filtration
The grease trap uses advanced filters and baffles to effectively capture and trap FOG, allowing only clean water to flow
M-43D
Polypropylene: A Greener Solution for Grease Traps
When it comes to constructing eco-friendly grease traps, polypropylene is the go-to material. Renowned for its durability and resistance to chemicals and moisture, polypropylene ensures long-lasting performance. What sets it apart is its recyclability – when it’s time for an upgrade, old polypropylene traps can be recycled, reducing waste and supporting sustainability efforts.
Which Grease Trap Suits You?
Match the trap to where it’s going and how busy the kitchen is — from a compact under-bench trap for the home to a high-capacity unit for a busy commercial kitchen.
Compact home kitchen
M-43F
Everyday home kitchens and tight under-bench spaces — including tiny homes and homes on septic or greywater.
Busier home or small café
M-43E
Higher-use home kitchens, staff kitchens, and cafés or light food-service where the loading suits.
Busy commercial kitchen
M-43D
Cafés, restaurants, hospitality and facility kitchens with higher grease loads.
The right size depends on the fixtures connected, peak flow and how much grease your kitchen produces. Between two models? Ask about sizing and we’ll match it for you.
Ready to take control of your kitchen's grease management?
Order a Passway™ grease trap today and ensure clog-free drains, a cleaner environment, and smooth kitchen operations. Don’t let grease-related issues slow you down. Click the button below to get Passway™ now and experience the difference in your kitchen!
Discover the Perfect Grease Trap
Welcome to our exclusive collection of Passway™ grease trap models! We offer three innovative and reliable grease traps, each designed to meet the unique needs of your kitchen. From compact under-bench options for residential and septic/greywater applications to high-capacity solutions for busy commercial kitchens, find the perfect grease trap to keep your drains clear and your kitchen running smoothly.
Grease Trap M-43D
Ø100mmBest for busy commercial kitchens — cafés, restaurants, hospitality and facility kitchens with higher grease loads.
Passway™ M-43D filters FOG (fat, oil, and grease) discharged from kitchens. When wastewater produced during the food treatment process passes through this grease trap, FOG is separated using buoyancy created by the difference in oil and water density.
• Easily accessible pre-installed adjustable air vent provides relief for gas build-up
• Air vent aids water flow and speeds up the separation of fats, oils and greases
• Durable stainless steel side latches provide a strong lid hold and easy access
• Durable EPD rubber O-ring seals the unit tight, preventing leakage of odour and fluids
• Internal baffles designed according to fluid-dynamic science screen solids and fats efficiently
• Trafficable lid for outdoor installations (enquire about load ratings)
• Simple design with both ergonomic and fluid-dynamic features
• Eco-friendly recyclable glass fiber-reinforced polypropylene (GFRPP) material provides high chemical resistance, excellent thermal stability, and makes the grease trap durable, corrosion-free, and long-lasting
• All components are removable for easy access and easy cleaning
Capacity
| Grease Trap (D) | Total Capacity | Water Capacity | Grease Capacity | Heat Resistant Temperature |
|---|---|---|---|---|
| 140L | 72L | 61L | 110°C |
Pipe Size Ø100mm
See above for our test standards and performance. Note that these values can change according to the installation and site conditions. See terms of use for legal.
Grease Traps M-43E & M-43F
Ø50mmM-43E — best for busier home kitchens, staff kitchens and small cafés where the loading suits.
Ø50mmM-43F — best for compact home kitchens and tight under-bench spaces, on-grid or off-grid, including septic and greywater.
Passway™ M-43E and M-43F grease traps are great for both off-grid and on-grid applications, including tiny homes and homes on septic or greywater. In off-grid scenarios, these grease traps improve the performance of septic and greywater systems, reducing risk to failure and prolonging their lifespan. Where sewer mains connections are provided, these grease traps offload the mains pipes and reduce maintenance costs for the property’s connecting pipework.
Passway™ grease traps achieve high efficiency in screening FOG, ensuring legal compliance to discharge quality standards wherever high primary filtration is required. Polluted wastewater is purified, preventing it from causing environmental damage. Keep NZ clean and green with responsible wastewater fixtures.
• Easily accessible pre-installed adjustable air vent provides relief for gas build-up
• Air vent aids water flow and speeds up the separation of fats, oils and greases
• Sight glass allows for easy monitoring of grease trap condition, allowing for easy maintenance and maximum efficiency
• Flush finger locking levers in the lid ensure a secure fit and easy accessibility
• Durable EPD rubber O-ring seals the unit tight, preventing leakage of odour and fluids
• Internal baffles designed according to fluid-dynamic science screen solids and fats efficiently
• Trafficable lid for outdoor installations, suitable for paved areas (enquire about load ratings and paving installation kit)
• Simple design with both ergonomic and fluid-dynamic features
• Eco-friendly recyclable glass fiber-reinforced polypropylene (GFRPP) material provides high chemical resistance, excellent thermal stability, and makes the grease trap durable, corrosion-free, and long-lasting
• All components are removable for easy access and easy cleaning
Capacity
| Grease Trap (E) | Total Capacity | Water Capacity | Grease Capacity | Heat Resistant Temperature |
|---|---|---|---|---|
| 64L | 47L | 16L | 110°C |
See above for our test standards and performance. Note that these values can change according to the installation and site conditions. See terms of use for legal.
Pipe Size Ø50mm
| Grease Trap (F) | Total Capacity | Water Capacity | Grease Capacity | Heat Resistant Temperature |
|---|---|---|---|---|
| 40L | 30L | 9L | 110°C |
See above for our test standards and performance. Note that these values can change according to the installation and site conditions. See terms of use for legal.
Pipe Size Ø50mm
Cleaning & Servicing, Made Simple
Every grease trap needs regular cleaning — it’s a quick job, and we’re here when you need advice, parts or a replacement.
How often?
- Stop the water flow and open the lid
- Skim off the grease layer and remove the water and sludge
- Scrub the inside, check the seals, reassemble — and note the next cleaning date
Some councils set their own maintenance rules for commercial premises — check with your local authority.
Already own a Passway™?
Re-order or get servicing help
For Plumbers & Installers
Speccing a Passway™ for a client? Here’s what you need to confirm fit — and a direct line for trade questions, separate from the online order.
| Model | Pipe connection | Approx. size (L × W × H) |
|---|---|---|
| M-43D | Ø100mm (125mm configuration also listed) | 850 × 500 × 600mm · 150mm riser available |
| M-43E | Ø50mm (75mm and 100mm configurations also listed) | 600 × 450 × 415mm |
| M-43F | Ø50mm (75mm and 100mm configurations also listed) | 400 × 450 × 415mm |
Trade enquiries
Material: recyclable glass-fibre-reinforced polypropylene (GFRPP), heat-resistant to 110°C. Standard covers are A15 / Class A for pedestrian areas.
Range independently tested to BS EN 1825-1 — test evidence, manuals and the range brochure are on each model’s page at wctnz.co.nz.
Call 0800 022 027 or email sales@wctnz.co.nz
Confirm the connection configuration before ordering. Model pages: M-43D · M-43E · M-43F
Grease Trap FAQs
Straight answers to what homeowners, café owners and plumbers ask before choosing a grease trap in New Zealand.
Do I legally need a grease trap for my café in NZ?
Most food premises do. Councils set trade-waste rules (under NZBC G13 and local bylaws) for how much fat, oil and grease can enter the drains, so it’s worth checking with your council early — and we can help you meet the requirements.
Which size or model do I need?
It comes down to use and pipe size: a compact under-bench trap (M-43E/F, Ø50mm) suits homes and small kitchens, while a higher-capacity unit (M-43D, Ø100mm) suits busy commercial kitchens. If you’re unsure, use Ask About Sizing and we’ll match it.
How often should a grease trap be cleaned?
Regularly — as a guide, every 3 to 6 months for a household and every 1 to 4 weeks for a restaurant or commercial kitchen, depending on how much FOG you produce. The sight glass on the M-43E and M-43F makes it easy to check the level, and regular cleaning keeps odours, blockages and pests away.
Does it work off-grid or on septic?
Both. On septic or greywater it protects the system and extends its life; on mains it offloads the pipes and cuts maintenance. That makes it a good fit for tiny homes and off-grid kitchens as well as town-supply properties.
Can it be installed indoors or outdoors?
Models suit both. For outdoor and paved areas, just enquire about load ratings for your site — the standard cover is rated for pedestrian areas.
What’s it made of, and will it last?
Passway traps use recyclable glass-fibre-reinforced polypropylene (GFRPP): high chemical resistance, excellent thermal stability, corrosion-free and long-lasting — and recyclable when it’s eventually replaced.
Not Sure Which Grease Trap You Need?
Tell us whether it’s for a home or a commercial kitchen and your pipe size (Ø50 or Ø100) — we’ll point you to the right model, or you can order direct.
- Phone 0800 022 027
- Email sales@wctnz.co.nz
- Supplied & supported in New Zealand by WCTNZ®
Phone
0800 022 027
sales@wctnz.co.nz
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