Poly-Air™-4 Activated Carbon Vent Filter
€98.00 ex VAT
In Stock
Free Overnight delivery with DPD (if over €100 of products are purchased).
Poly-Air 4 Activated Carbon Vent Filter
The Poly-Air 4 activated carbon vent filter helps control unpleasant gases escaping from septic tanks, wastewater treatment systems, grease traps and sewage ventilation pipes. It fits directly onto standard 110mm (4-inch) vent pipework and contains replaceable activated-carbon pellets.
As gases pass through the filter, the carbon captures hydrogen sulphide and other odour-producing compounds. Therefore, the Poly-Air 4 can help prevent foul smells from drifting towards houses, patios, gardens and open windows.
What does the package include?
The complete package includes:
- Poly-Air 4 filter housing
- Twist-lock lid
- Internal retaining screen
- Two screen screws
- One bag of activated-carbon pellets
- Installation and maintenance instructions
The supplied filter contains approximately 1lb of activated-carbon pellets.
Product features
- Fits standard 110mm / 4-inch vent pipes
- Helps control hydrogen sulphide odours
- Suitable for septic tanks
- Suitable for wastewater treatment systems
- Suitable for sewage systems and grease traps
- Activated-carbon filtration
- Replaceable carbon pellets
- No electricity required
- No moving parts
- Quick installation
- Removable twist-lock lid
- Straightforward maintenance
- Cost-effective odour-control solution
Typical applications
The Poly-Air 4 may suit ventilation pipes connected to:
- Domestic septic tanks
- Wastewater treatment plants
- Pump stations
- Grease traps
- Sewage holding tanks
- Sewage pumping systems
- Commercial wastewater installations
- Agricultural wastewater systems
The filter treats odours leaving the vent pipe. However, it does not repair a blocked drain, failed treatment system, damaged vent or overloaded septic tank.
If foul smells continue after installation, inspect the wastewater system and ventilation pipework for faults.
Installation guidance
First, remove the filter components from the packaging. Cut one corner of the carbon-pellet bag to create a pouring spout.
Next, pour the activated-carbon pellets into the housing. Shake the housing gently while filling it so the pellets settle evenly, but do not pack or compress them.
Place the retaining screen over the carbon chamber and secure it with the two supplied screws. Afterwards, fit the lid and turn it clockwise until it locks into position.
Finally, align the housing with the top of the 110mm vent pipe and press it firmly into place. Ensure that the vent pipe stands securely and keeps the filter upright.
Download the Poly-Air 4 installation and maintenance guide.
For a larger vent filter, view the Poly-Air 6 activated carbon vent filter, browse our tank parts and accessories
Contact Percolation Supplies if you need help confirming whether the Poly-Air 4 activated carbon vent filter suits your ventilation pipework.
Downloads
Poly-air 4 Carbon Vent Filter Data Sheet-septic tank filters
Poly-Air 4 Installation & Maintenance Guide-septic tank filters









