Filter .75" Furnace 8 : King x MERV 4 PACK Filter HVAC 30 Filters MADE IN x Pleated 23x30x1 USA Air Actual A C 23 Opblaasbaar tent voor camping Opblaasbaar tent voor camping Butterflies flit among rich foliage 75" MAX PERFORMANCE: Our filters can last up to 90 DAYS before needing replacement This will help maintain the longevity of the intended application like A C and heaters CAPTURE MORE: Protect your home