16x18x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack Plant Support Blue Tubing

Blue Tubing

• Bearing Cover

Improves the nutritional value of fruit and vegetable crops

Choose from 3/4 or 1 inch diameter

Dimensions 50 x 174 x 21 mm (2 x 6

16x18x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack Plant Support Blue TubingNordic 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