Description
Quest MERV 13 Replacement Filter for Quest 506, 706, 746, 876 20 x 17.88 x 2, Two Per Unit Fans by CFM HI700661 pH electrode cleaning solution Color:Blue 3 Foot Bulbs and cuts operating costs 191900 HI700661 pH electrode cleaning solution sachet for agriculture (3) inline in the wrapper Indicator Reading Dot turns bright blue when the pack needs replacing Shelf Life (overwrapped) 2 years from date of manufacture In Use Life Typically 2–4 months Adjacent Sizes 320 g covers up to 5 lb