later If you have an Aprilaire system that uses a 313 filter this is what you need. Buy a pair. Now that I've found them, I plan to swap them out just before summer in April and just before winter in November. Yes, this is Texas.
π Enhanced Performance Solberg FS 06 050 Filter Silencer Diameter: An Efficient Solution for Noise Reduction
3 Review
π§ Bostitch BTFP72326 4" Thread Regulator
8 Review
πΏ Maximize Air Quality with the Aprilaire 201 Replacement Filter Purifier
7 Review
ARO P39344 600 VS Air Filter Regulator Piggyback - The Ultimate Solution for Efficient Air Filtration and Regulation
3 Review