Whole House Humidifier Filter Pad For Aprilaire 550 558

This Whole House Humidifier Filter Pad is designed for use with Aprilaire models 550 and 558. It helps maintain optimal humidity levels throughout your home by efficiently filtering water in your humidifier system.

• Compatible with Aprilaire 550 and 558 whole house humidifiers
• Effective filter pad for improved air moisture quality
• Easy to install replacement part
• Helps prevent mineral buildup in the humidifier system

This is an aftermarket part, not an OEM product. Compatibility may vary depending on the machine's serial number. Please verify fitment before purchase.