Ribbed on the outside, smooth inner surface on the inside, ISOPIPE ventilation fitting with high rigidity and low pressure loss, can be used at 90° or cut in half as 2 pieces of 45°. Designed for ventilation systems with high energy efficiency (e.g. central heat recovery ventilation solutions). Its material is high-quality polyethylene (external) and closed-cell polyolefin (internal).

Other features:
- prevents the formation of condensate and its condensation;
- moisture-repellent design;
- high noise and vibration damping;
- application temperature: -40°C ... +95°C;
- design free of toxic additives;
- high compressive strength;
- despite its ribbed design, a smooth, low pressure loss internal surface;
- can be installed easily without the use of adhesives;
- it can be cut, if necessary, it can be fitted to additional fittings or pipes with a splicing element;
- the factory 90° fitting can be cut into 2 45° fittings if necessary.