12_3/4x20_3/4x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack vacuum 01 calibration buffer designed with

01 calibration buffer designed with hydroponics

Microbe Brew

●【Daisy Chain Dimming Function】Light designed with a dimmer knob which makes dimming more convenient

The 1000W HPS ONLY Hot Head Magnetic Ballast is great for the grower on a budget

Increase your eyes comfort and experience in the harsh conditions of the grow room environment

12_3/4x20_3/4x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack vacuum 01 calibration buffer designed withNordic Pure Custom MERV 8 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