Eco
![](https://binks.aerem.com/wp-content/uploads/sites/25/2019/12/Eco-1024x829.png)
Specification
2 layers of bright white or brown paper, punched, pleated, fitted with expansion straps, then glued together. For superior strength and longer working life.
Premium
![](https://binks.aerem.com/wp-content/uploads/sites/25/2019/12/premium3-1024x743.png)
SPECIFICATION
White: 2 layers of bright white paper, punched, pleated, fitted with expansion straps, then glued together. For superior strength and longer working life.
HE: 2 layers of high grade paper, punched, pleated, fitted with a polyester final stage filtration, with expansion straps, then glued and stapled.