K&N parts matching Purepro A4721 air filter

The Purepro A4721 air filter cross references with the K&N air filter parts below. K&N offers compatible air filters for many Purepro air filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Randye S. De Lorto, Cusick, Washington
I was thrilled with my purchase, as always with the K&N products. Quick delivery of a superior product. We'll never change... we are K&N believers & customers for life.
Brian Greenhouse, Castle Pines, Colorado
I have been using K&N Air filters for the last eight years. I love them. The Service from K&N is very fast.
Bob Boaz, Redwood City, California
Product is awesome. I noticed a great difference in response and gas mileage.
33-2064 K&N 33-2064 Replacement Air Filter
List Price: $105.49
Your Price: $67.99
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Carlos, Sacramento California
This is my second K&N and it is definitely worth it. Have one on my Chevy Impala and now on my Isuzu Amigo. Great product.
33-2108 K&N 33-2108 Replacement Air Filter
List Price: $105.99
Your Price: $67.99