Best Seller | Ruud DPFU17.5X21X5M8-DRU Merv 8 Replacement Filter - Pack Of 2 Upgrade your Ruud central heating system with this high-quality MERV 8 replacement filter. Designed to trap filter and reduce major pollutants like dust and pollen this whole-house media air cleaner ensures clean and fresh air circulating through your... more | | $62.24 $46.56 go to store |