Kaz WF1 Humidifier Filter (Aftermarket) Fits Kaz humidifier models 3000, 3300, 3400 &amp; EV710. Kaz humidifier wick replacement filters. Measures approximately 5.12" H x 6.75" ID x 7.75" OD x 0.5" thick. Traps impurities from entering the air. This is an aftermarket filter.