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| Nominal Size (mm) | Size (Inch) | Fitting Type | Installation Method | Application Logic |
| 75 mm | 2.5" | Vent Cowl | Friction / Push Fit | Community Stack Venting |
| 110 mm | 4" | Vent Cowl | Friction / Push Fit | Main Vertical Stack Vent |
Atmospheric Pressure Logic: Engineered to facilitate the continuous venting of foul gases while preventing airlocks and siphoning of plumbing traps within the building.
Multi-Layer Debris Shield: Features a specific internal geometry that blocks the entry of rainwater, nesting birds, and insects into the main drainage stack.
Maximum UV Resilience: Specifically formulated with high-concentration UV stabilizers to prevent discoloration and material brittleness caused by direct rooftop sun exposure.
Corrosion-Proof Polymer Build: Manufactured from high-purity uPVC to eliminate the rust and deterioration common with traditional metal vent covers in humid environments.
Secure Friction-Fit Logic: Designed for easy, tool-free installation on standard 75mm and 110mm uPVC pipes, ensuring a tight fit that resists strong wind uplift.