National Hardware Solid Flats 1-1/4" x 48" Size:1-1/4" x 48" The 2-piece foam interior adapts

The 2-piece foam interior adapts to fit flanges that are above

can be cut to desired length with a hack saw

Increased Shell Thickness

The PCV1 upgrades your present foundation vent and dries the crawlspace gradually

2-1/2" Blue Polypropylene Double Flagged Fiber

National Hardware Solid Flats 1-1/4" x 48" Size:1-1/4" x 48" The 2-piece foam interior adaptsNational Hardware's 1 1 4" x 48" Solid Flat is designed for reinforcement, base plates, and supports for construction or industrial applications. Corrosion resistant galvanized finish Can be drilled For interior and exterior applications Not recommended for welding due to zinc plating Coated with Weatherguard Protection to withstand harsh weather conditions and prevent corrosion.