16x20x4 (3 5/8) Pleated Air Filters MERV 7 Plus Carbon 1 Pack commercial-greenhouse-fixtures • No need to reapply

• No need to reapply if it rains after 1-3 days

7 μmol/J• Plug and Play for a quick installation• On-board Dimming and Adjustable Spectrum• External Controllability with 256 fixtures per channel• Group Control Capability

12pcs per HCS-3

Lower your operating costs and improve your cultivation environment with cool & efficient horticultural lighting that stacks layers upon layers with practically zero radiant heat and efficacy surpassing 2

16x20x4 (3 5/8) Pleated Air Filters MERV 7 Plus Carbon 1 Pack commercial-greenhouse-fixtures • No need to reapplyImportant 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