Aprilarie 10 (10-Pack) - Replacement Water Panel Humidifier Filter For Aprilaire Whole-House Humidifier Models 110, 220, 500, 500A, 500M, 550, 550A, 558

Aprilaire 10 Water Panel for Humidifier Models 110, 220, 500, 550, 558• Genuine Aprilaire Water Panel Replacement• Made in Wisconsin, USA• Fits Aprilaire Humidifier Models: 110, 220, 500, 550, 558• Water panel dimensions are 10" H x 9.75" L x 1.75" W• Optimizes humidity levels in your home.• Helps r