16_1/4x21_1/4x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack soil nutruient This pest control product is

This pest control product is very effective in killing caterpillars and worms

includes 10-32 screw

concentrated forms of silicic acid ever achieved in a stable liquid form

10 boxes in a case

Adds mechanical strength to stems

16_1/4x21_1/4x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack soil nutruient This pest control product isNordic 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