A replacement option for the Aprilaire (formerly Space-Gard) type 201 media, the Z-Line 700 SG comes factory assembled to assure quality and easy installation. The ZLine 700 SG media incorporates 100% synthetic fibers that are thermally-bonded for stregnth and durability. The Z-Line 700 SG achieves a MERV 8 and has pre-applied gasketing on the assembled air filters to help prevent air bypass. Installation is a snap:
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