WhisperComfort Exterior Wall Cap With Styrofoam Adapter For Exhaust And Supply Air Flow No Fuss Install Prevents Cross Contamination Works With WhisperComfort And Intelli-Balance 100 ERV Models No Extra Mounting Hardware Needed

Exterior Wall Cap with Styrofoam Adapter for ERV Airflow ✔️ 4" duct exterior cap with styrofoam adapter; cross-contamination prevention

This styrofoam exterior wall cap is designed for use with compatible ERV models and Intelli-Balance 100, allowing both exhaust and supply air to pass through a hole in the building envelope. Its Y-shaped design helps prevent cross-contamination. It’s ideal for smaller, multi-family applications and requires no extra mounting hardware. Color: White.

✅ 4” duct compatibility for exhaust and supply air
✅ Y-shaped design prevents cross-contamination
✅ Easy installation; no extra mounting hardware needed
✅ White styrofoam exterior cap; durable and lightweight
✅ Not recommended above 50 CFM operation
✅ 3-year limited warranty included

💡 What is the best exterior wall cap for ERV installations to prevent cross contamination and ensure easy installation?

This handy piece helps seal the building envelope while letting both exhaust and supply air flow through. - 4" duct compatibility for ERV exhaust and supply air
- Handy for smaller multi-family projects where simple install matters
- Keeps exhaust and supply air separate while passing through
- Compatible with ERV control systems for reliable operation
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