15x19x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack Commercial Lighting High solubility

High solubility

AZOS Red Liquid is ideal for cloning and plant propagation

This product allows you to easily split one 16-17mm FloraFlex Double Layered Tubing into two by hand

Proper air flow carries moisture away from the plants

Marine Cuisine is truly Seafood for your Garden

15x19x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack Commercial Lighting High solubilityNordic 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