The Rinnai Water Supply Filter 107000317 Part No. H98-510-S-SB1 is a pack of 10 water filters designed specifically for Rinnai water heaters. These filters, with model number H98-510-S, are compatible with OEM models and are essential for maintaining clean and fresh water for your kitchen or home. The Rinnai brand ensures quality and reliability, making this product a convenient and necessary addition to your water purification system.