If your pleat spacers get lost or broken over time it is easy to keep your air filters loading properly. Ordering more of these comb-like spacers is inexpensive and will ensure maximum like from your air cleaner. Pleat spacers support the filter material and spread the pleats to ensure optimum efficiency. These Aprilaire and Space-Gard pleat spacers are made of durable plastic and are reusable with new filters. This package includes 5 pleat spacers.