15_1/4x15_1/4x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack soil Featuring a detachable Leap pH

Featuring a detachable Leap pH probe with simple

The Original ExHale CO2 Bag produces CO2 24 hours a day with no need to refill bottles or use expensive CO2 production units

SNS-604A and SNS 604B are each one-part nutrient additives to be used throughout the plants growing and flowering cycle

Granulated rockwool as potting mix: When you use granulated rockwool to pot up your plants

15_1/4x15_1/4x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack soil Featuring a detachable Leap pHNordic 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