16_1/4x21_1/4x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack nutrient-combo • Four way output control

• Four way output control 60%

SNS-604A™ Vegetation Organic Growth Supplement Concentrate & SNS-604B™ Flowering Organic Growth Supplement Concentrate (512 to 1) - Grow Bigger

4 GPH / 10 - 50 PSI

00 - Length (in): 7

Saboten's Tungsten Carbide Sharpener is ideal for sharpening and honing all straight blades

16_1/4x21_1/4x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack nutrient-combo • Four way output controlNordic Pure Custom MERV 13 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