13_1/4x13_1/4x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack Pumps & Irrigation Use Portable Mini Greenhouses and

Use Portable Mini Greenhouses and Cloches To Save Money The purchase of a full sized greenhouse is undoubtedly a very large financial investment but we offer a number of less expensive alternatives to help with the whole process of propagating your seeds

Year-Round Indoor Operations – Low-temp defrost capability makes this unit reliable through winter months when ambient temps drop

These connectors enable you to keep multiple areas ventilated

and the rounded square shape makes these great for stacking large quantities

To be used exclusively with ONA Gel

13_1/4x13_1/4x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack Pumps & Irrigation Use Portable Mini Greenhouses andNordic 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