20_1/2x25_1/2x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack Lighting Accessories - Can be used on

- Can be used on everything you grow

What also sets these bags apart is the quality materials

reduces vibration while ensuring smoother airflow

5' (45x45cm) Bloom stage and 2'x2' (60x60cm) Veg stage

The polymers also reduce over and under watering

20_1/2x25_1/2x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack Lighting Accessories - Can be used onNordic Pure Custom MERV 10 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