16x20x4 (3 5/8) Pleated MERV 13 Air Filters 2 Pack grow-light-reflectors Full Spectrum & Dimmer Function:

Full Spectrum & Dimmer Function: The VIPARSPECTRA VA-Series 1000W LED grow light adopt Dual-Chip (10W) LEDs and provides full spectrum lighting (including IR) making it suitable for all growth stages

Engineered to commercial standards with a 15-inch hand selected ash wood treated handle

Bean Beetles

The pH sensor in the probe is a single junction electrode with gelled electrolyte and a retractable cloth junction

fungus gnats

16x20x4 (3 5/8) Pleated MERV 13 Air Filters 2 Pack grow-light-reflectors Full Spectrum & Dimmer Function:Important 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. If you are replacing a 4 3 8 depth 16x20x4 filter