Whynter ARC-IHF Intake Hose Pre-Filter compatible with Whynter portable air conditioner models: ARC-110WD, ARC-122DS, ARC-122DHP, ARC-12SD, ARC-12SDH, ARC-131GD, ARC-14S, ARC-14SH, ARC-141BG, ARC-143MX is an important addition to compatible dual hose portable air conditioners. It can be used to reduce the intake of impurities, such as dust and dander in your home or office. This washable intake air filter will help extend the life of your Whynter dual hose system.