4" Round Air Supply Ventilator - Asv-90
4" Round Air Supply Ventilator - Asv-90
SKU:COP41800
Ships within 5-7 business days
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4" Round Air Supply Ventilator - ASV-90
This supply vent is installed through an outside wall in less than 30 minutes. No batteries, ductwork, or electrical wiring needed. It features a manual shut-off. The round opening is 4" in diameter, and the square grates measure 5 1/2". If your house is a typical tightly-built modern home, you need an Air Supply Ventilator (ASV). Whether you have a kitchen fan, bathroom fan, dryer vent, fireplace, or woodstove, your home would benefit from installing one or more ASVs. Today's architects, contractors, and intelligent homeowners realize that proper ventilation is a necessary component for personal health and a healthy home. By bringing fresh filtered make-up air into your house from outside, ASV ensures your fireplace or woodstove operates efficiently, with no smoke leakage.
WARNING: Carcinogens: This product can expose you to chemicals including Lead, which is [are] known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.
Features
- Installed through outside wall
- Quick installation
- No batteries, electrical wiring, or ductwork needed
- Very DIY
- Manual shut-off
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At Chimney Cricket,
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Whether youβre upgrading your fireplace, maintaining your chimney, or enhancing your outdoor grill setup, we offer industry-leading solutions trusted by professionals and homeowners alike.

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FAQ
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Q: How do I choose the right chimney cap size?
A: Measure the outside dimensions of your flue and select a cap that fits securely. Our product descriptions include detailed sizing charts for easy selection.
Q: Are your fireplace grates compatible with all fireplaces?
A: We offer a variety of sizes and materials to fit masonry and prefab fireplaces. Check our product specs for details.
Q: Do you offer installation guides?
A: Yes! Many of our products come with step-by-step instructions, and we provide expert tips in our blog to help with installation and maintenance.
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