The Polaris filter traps particles 64% smaller in size than the competition resulting in lower levels of contamination in your engine. The Polaris filter has 44% less restriction than the competition to ensure adequate lubrication in all conditions. Product contains 1 filter. Consumer Warning- In order for work to be performed safely and correctly many parts replacement procedures and repair procedures must be done by trained Polaris service technicians in a properly equipped shop. You must read the service manual and be familiar with the service procedures before starting the work. Certain procedures require the use of special tools that are not available to the general public and your dealer will have to perform these procedures for you as necessary. If you have any doubt as to your ability to perform any of the procedures outlined in this service manual, contact an authorized Polaris dealer for service. Procedures indicated to be performed by dealers only could void your warranty if performed incorrectly. The failure to follow correct procedures and use correct tools could result in serious injury or death.