21_1/4x21_1/4x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack Rootamentary • Light sensor

• Light sensor

1 packet each pH 4

moth fly and pupae of thrips and springtails

This is the perfect fixture for all your horticulture applications and is leading the industry with the most efficient dimmable ballast and an open-air reflector that utilizes a unique passively cooled design

Product Highlights Sky Blue Metal Halide provides an ideal spectrum to help plants grow in vegetative stages

21_1/4x21_1/4x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack Rootamentary • Light sensorNordic Pure Custom MERV 7 Plus Carbon air filters are made based on the actual measurements so be sure to measure your current filter to get the EXACT dimensions before ordering. As with all Nordic Pure filters, the effective life of your filter depends on the environment in which you live. We recommend changing 1 and 2 filters every 30 90 days. Our 4, 5 and 6 inch thick filters could last up to 6 months. EXACT MEASUREMENT: Furnace and air condition