Boost the freshness in your fridge with a complete solution for fresh water, fresh ice, fresh air and fresh food. The replacement filters in this bundle provide up to six months of freshness. Refill kit contains WF2CB PureSource 2® water filter, PureAir Ultra® air filter and PureAir® Freshness Booster™ ethylene absorber refill. It does not include the Freshness Booster™ holder. Subscribe and save today!