4 Inch Filters | Canadian Air Filters

Please note: Our lead time is up to 2 weeks for standard-sized filters and up to 3 weeks for custom-sized filters. We appreciate your patience and understanding.

📩 Email us at info@canadianairfilters.com or 📞 Call us at (800) 858-0765 for any questions. Our business hours are Monday to Friday, 7:00 AM – 3:30 PM (Ontario time). Due to peak season, please allow 2–3 business days for email replies. We recommend contacting us via email for the fastest response.

Shipping to Newfoundland is not available at checkout, but we do ship there! Email us at info@canadianairfilters.com for shipping rates.