16x24x 1/2 Half Inch Ring Panel MERV 7 Furnace Air Filters 12 Pack hydro-x This allows for less initial

This allows for less initial power draw when using multiple ballasts

Boot covers provide protection from liquids and particulates

AO 36/40 plugs fit well into the hole sizes provided by the blocks

Heavy duty Nylon Valve easily comes apart and reassembles for cleaning

with Samsung LM301B

16x24x 1/2 Half Inch Ring Panel MERV 7 Furnace Air Filters 12 Pack hydro-x This allows for less initialNordic Pure Half Inch Ring Panel AC Furnace Air Filters consist of an internal frame bonded between flat layers of two different types of electrostatically charged HVAC furnace filter media. The first layer is a high capacity, polyester filter material which acts as a pre filter, capturing large airborne particles. The second, more efficient, layer is a MERV rated smooth poly blend filter material. The electrostatic charge works as a magnet to draw in