Frequently Asked Questions
Quick answers about filter sizes, MERV ratings, shipping, subscriptions, and support.
Ordering & Products
MERV 10 is great for everyday dust, pollen, and basic filtration. MERV 11 is our most popular choice and offers a strong balance of airflow and filtration. MERV 13 provides the highest filtration level we offer for homeowners focused on indoor air quality, allergies, or smoke particles.
The easiest way is to check the size printed on the frame of your current air filter. You can also browse our Shop by Size page to find your exact size.
The nominal size is the rounded size used for shopping, such as 20x25x1. The actual size is usually slightly smaller so the filter can fit properly inside your HVAC system.
We are continually adding more sizes. If you do not see your size, contact us and we will help you find the correct replacement filter.
Yes. Our pleated air filters are made in the USA and built for reliable performance, consistent airflow, and cleaner indoor air.
Shipping & Delivery
Yes. Orders ship free within the continental United States.
Most orders ship within 1 to 2 business days. Once your order ships, you will receive tracking information by email.
At this time, online orders are limited to the continental United States.
Subscriptions
Choose your delivery frequency and we will automatically send replacement filters on schedule. It is a simple way to stay on top of filter changes without having to remember to reorder.
Yes. You can manage your subscription through your account dashboard and make changes whenever needed.
Returns & Support
Contact us as soon as possible. If your order has not shipped yet, we will do our best to update it before it leaves our warehouse.
You can reach us through our Contact Us page or email us at hi@filtersshipped.com.