21_1/2x23_5/16x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack Plant Support Flexible 180 degree movement】Give growers

Flexible 180 degree movement】Give growers no worries while growing in a humidity environment

Compatibility: 945W CMH and 1

• Weight: 219 grams

• Great coverage—up to 13

Maximum Height: 11

21_1/2x23_5/16x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack Plant Support Flexible 180 degree movement】Give growersNordic 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