21_1/2x23_5/16x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack Lighting • OMRI Listed and Compliant

• OMRI Listed and Compliant for use in organic farming

The built-in temperature sensor ensures every reading is adjusted for environmental changes

HB1500 Full Spectrum Led Grow Lamp including high efficient horticultural LM301H plus Red

Treat your root zone with respect and your other problems will simply go away

Replacement Tumbler Barrel Bubble Magic 1500 gram - 145 micron

21_1/2x23_5/16x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack Lighting • OMRI Listed and CompliantNordic 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