16x25x5 (4 3/8) Honeywell/Lennox Replacement MERV 14 Air Filters 4 Pack Ventilation Botanicare's pH Down consists of

Botanicare's pH Down consists of a 29% concentrated phosphoric acid solution that rapidly lowers pH levels with its gentle

The oils are naturally sourced and carefully harvested then cold-pressed for extraction to preserve their purity

an integrated temperature sensor

(1:3000 to 1:333) w/ Kalrez Seals (D14MZ3000VFBPIIK)

Now with our product you just simply lift and twist the pot clear of the base

16x25x5 (4 3/8) Honeywell/Lennox Replacement MERV 14 Air Filters 4 Pack Ventilation Botanicare's pH Down consists ofImportant Note: Almost ALL furnace filters have a different "actual size" than the nominal size printed on the air conditioner filter. It's best if you measure your air filter for the EXACT size and compare it to our "Actual Size" and then you can be sure your A C air filter fits! With the 4" and 5" air filters there is a wider variance between the nominal and actual size depending on the manufacturer. We also carry 4 7 8 and 5 1 4 inch depth filters,