4Pack BestAir Replacement Humidifier Filter Water Pad Elite Durable plastic
And other compatible humidifier systems. ✔ 4x Water Pad Filters (#10 Size). 🔁OEM-Compatible #10 Pad – Replaces Aprilaire 10, Honeywell HC22E1003. ✅ Key Features 🛠️Easy Installation – Drop-in fit for most bypass/fan-powered humidifiers.