28x34x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack veg nutrients Pheromone lures or essential oils

Pheromone lures or essential oils can be added to increase trap effectiveness

Does it measure moisture directly

Our premium three-part nutrient system leaves nothing to chance and ensures an excellent crop

• Construction: Surgical grade 316 Stainless Steel

28x34x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack veg nutrients Pheromone lures or essential oilsNordic Pure Custom MERV 12 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