Generalaire 13156 Furnace Filter 401 MERV11 Replacement Filters are designed for best efficiency and are the heart of your air purifier.

Fits: Aprilaire Model 2400, GeneralAire Model AC24, Source 1 Model S1-MAC11162506

• Expandable
• High-efficiency MERV 11 rating
• Lasts one to two years (Depending on the operation of your heating and/or air conditioning system)

Introducing the Generalaire 13156 Furnace Filter 401 (approximately 16" x 27" x 6") for Generalaire model AC24. The 401 filter has 32 fan-fold pleats and requires assembly with 6 plastic pleat spacers. These filters ship like a collapsed accordion and are expanded into a plastic frame (NOT INCLUDED) within the air cleaner cabinet. The filter is installed within the plastic frame and held in place with your existing pleat spacers (NOT INCLUDED). Assembly instructions are printed on the product carton.

Specifications	401 / 13156/ GFI#4051
Efficiency Rating:	MERV 11
Lifespan:	12 months
Size (Nominal):	16" x 27" x 6"

 

This filter is sold under the following brand and part numbers:

Part Number	Brand
401	Aprilaire, Space-Gard
S1-FM401	Coleman, Luxaire, Source1, York

 

This filter fits the following equipment: (This filter can also be used to replace any of the size-equivalent filters listed below. Specifications may differ)

Brand	Model Number
Aprilaire	2400
Coleman	S1-WHM10162505C
Lennox	PMAC-12C, X4559
Luxaire	S1-WHM10162505L
Source1	S1-WHM10162505
Space-Gard	2400
York	S1-WHM10162505Y