13x23x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack Controller It is compatible with all

It is compatible with all injectors and fertigation systems

Roots Organics Ancient Amber is a highly soluble and distinctly active natural nitrogen source extracted in part from nettle

No irrigation line clogging

the fixture can be kept just inches away from the seeds (or humidity dome)

Similar to the CenturionPro® Original

13x23x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack Controller It is compatible with allNordic 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