Purolator air filters
Shop Filter King replacement filters for Purolator systems. Made in the USA with fast, free shipping directly to your door.
Guaranteed to fit
Compatible with a wide range of Purolator systems
MERV 8, 11, 13 & Carbon
High-performance filtration for cleaner, healthier air
Fast, free shipping
Fast delivery from 4 fulfillment centers across the USA
Easy to return / exchange
Not the right fit? Return or exchange your order within 30 days.
Choose your Purolator filter
Can’t find your air filter size?
Order a made-to-measure air filter that fits perfectly and keeps your air clean.
10,000+ satisfied customers
4.6 stars, 5243 reviews
4.5 stars, 4314 reviews
"I am a new customer and so happy I found Filter King. Their customer service is truly outstanding."
Christine D.
Verified Buyer
"Have only instructed the first one . But it fit perfect. Give me a month to tell you how it worjs"
Patrick R.
Verified Buyer
"Perfect filter suze"
Sherie s.
Verified Buyer
"Great. . quick delivery"
Donna M.
Verified Buyer
"Filters are helping keep the air clean in my apartment."
Janis M.
Verified Buyer
"Perfect!"
Randy K.
Verified Buyer
"Exceeded my expectations!"
Wester W.
Verified Buyer
"I just said shipping went well, delivered in the promised timeframe. This was important because you never know what the weather will do. Gave a chance to watch for the package and not have it sit outside for very long."
David D.
Verified Buyer
"Great filters!"
Lisa D.
Verified Buyer
"Excellent product and great price"
John B.
Verified Buyer
Filter King air filters for Purolator
Filter King air filters are compatible with Purolator HVAC systems and work as direct replacements for the original filters made for these units — at a fraction of the price. Each filter is MERV-rated and built to the same dimensional specs, so you get reliable, high-quality filtration without the premium cost.
guaranteed compatibility with