Daiken Corporation This is the dedicated replacement filter SB0499-K05. This is a high-quality filter compatible with 24-hour ventilation systems. It comes in a pack of 5 and allows for long-term use. 【Compatibility Information】 Compatible with Φ100 type and Φ150 type pipes, and supports sizes from 140mm to 195mm. Designed to maximize the efficiency of ventilation openings. 【Purpose of Use】 This filter is essential for the maintenance of ventilation systems, and regular replacement is recommended to maintain air cleanliness. - Brand: Daiken Corporation - Product Name: Dedicated Replacement Filter - Model Number: SB0499-K05 - Quantity: 5 sheets