Glasfloss Replacement - For Aprilaire #401 Media

Glasfloss Z-Line 700 SG (Aprilaire) This Is The Replacement Option For The Aprilaire (Formerly Space-Gard) Media #401. This Filter Is Factory-Assembled To Guarantee Quality And Easy Installation. The Z-Line 700 SG Is Made Up Of 100% Synthetic Fibers That Are Thermally-Bonded. There Is Pre-Applied Gasketing On The Assembled Filters That Help Prevent Air Bypass. Installation Is Quick, Simply Remove The Internal Plastic Frame From The External Metal Housing And Remove The Dirty Filter And Its Components. Install The New Z-Line 700 SG Filter With The Metal Grid (Air-Exit Side) Facing Up. Once The Plastic Frame Is Closed, It Will Slide Back Into The Metal Housing. Each Filter Is Sealed In Plastic Bag To Avoid Contamination Before Use. Available In Merv 8-10, 11 And 13.