16x25x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 10 Pleated Plus Carbon 4 Pack Growing Media Heavy Red Spectrum

Heavy Red Spectrum

It can be found as an impurity in butane

There are four precision thermal probes included

1 x Full Spectrum Quantum Sensor

16x25x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 10 Pleated Plus Carbon 4 Pack Growing Media Heavy Red SpectrumImportant 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,