Filter Base 16X25 Upflow/Horiz for Gas Furnaces

• 16 Length (In)
• 25 Width (In)

Filter Base 20X25 Upflow/Horiz for Gas Furnaces

• 20 Length (In)
• 25 Width (In)

Filter Base 14X25 Upflow/Horiz for Gas Furnaces

• 14 Length (In)
• 25 Width (In)

Filter Base 16X20 For Heat Pump Air Handlers

• Cased Cased-Uncased
• Width (In)

Filter Base 20X20 For Heat Pump Air Handlers

• Cased Cased-Uncased
• Width (In)