BestAir ALL-3 Wick Filter, 44 in L, 4-1/2 in W, White, For: Essickair Emerson Moistair HumidifierFits most Emerson and Kenmore humidifiers. Metal reinforcement. Adds rigidity to shape of the wick filter when moistened. Also adds stability with today softer, more absorbent paper. Prevents slumping or insagging in over time or when wet. Helps maintain the humidifier designed output. Universal wick filter cut to fit (6 1 4 x 11 x 4 1 2 in). Unit: PK 2 UPC: 078757010399 Model Number: ALL 3