
EAFHG1625-6 – FILTER BASE (16″W x 25″D – 1″, 2″, or 4″ FILTER, GAS)
Measure the cabinet width before you buy - the base has to match the equipment, and the filter size follows from that, not the other way round. And check whether the base takes 1" only or 1"/2"/4"; a deep media filter needs a base built for the depth.
10226 Plano Rd, Suite 104, Dallas TX 75238
Questions? Call or text (214) 340-9421
Mon–Fri 10 am – 7 pm | Sat 10 am – 3 pm
The EAFHG1625-6 Filter Base is engineered to enhance your gas furnace’s performance by providing a versatile housing for 1″, 2″, or 4″ filters. Designed for gas furnaces, this filter base accommodates standard 16″ x 25″ filters, ensuring optimal air quality and system efficiency. Its robust construction and user-friendly design make it an excellent choice for homeowners undertaking DIY HVAC maintenance.
- Compatibility:
- Fits gas furnaces up to 5 tons
- Accommodates standard 16″ x 25″ filters in 1″, 2″, or 4″ thicknesses
- Key Technical Specifications:
- Material: 22-gauge galvanized steel
- Dimensions: 17.375″ W x 28.5″ L x 5.75″ H
- Filter Size: 16″ x 25″ x 1″, 2″, or 4″
- Insulation: Fully insulated to prevent energy loss
- Door: Hinged with magnetic latch for easy access
- Replacement Part Numbers:
- ACE1625-6
- FHG1625-6
- 54-1625-E6
- FSFHG1625-6
- EZ-1625FC-6
- 3207.1625.22.FC
- PEPEAFHG16256
- ACE1625NC-6
- EAFHG1625-6
- EAFHG1625-6
- Additional Information:
- The filter base’s solid cabinet design is spot-welded and riveted for durability and longevity.
- Rounded corners and mounting holes are provided for safer handling and faster installation.
- The fully insulated construction helps maintain system efficiency by reducing energy loss.
- The hinged door with a magnetic latch and integrated handle ensures a tight seal, preventing air and debris from entering the filter box from the surrounding area.
Specs
- TypeFilter base
- Cabinet size16"W x 25"D
- Filter size16" x 25"
- Filter depth accepted1", 2" or 4"
- ApplicationGas furnace
- PositionReturn side, upstream of the blower and coil
Cross-reference numbers
This part replaces the following OEM and aftermarket numbers:
- EAFHG1625-6
- EZ-1625S
- FB1625-6
Not sure if your number matches? Call (214) 340-9421 or bring the old part in — bench-testing is free.
Fits these models
- ELECTRO-AIRE1625GAS
What size filter base do I need?
It is sized to the furnace or air handler cabinet it bolts to, and to the filter that goes in it. A 20"W x 25"D base takes a 20x25 filter. Measure the cabinet width first - the base has to match the equipment, and the filter follows from that.
Can I put a 4 inch filter in it?
Only if the base is built for it. Some of our bases accept 1", 2" or 4" media; others are 1" only. Check the listing - a 4 inch filter will not go into a 1 inch rack no matter how you angle it.
What is the difference between a filter base and a filter rack?
A filter base is a sheet metal section that sits under the furnace and forms part of the cabinet, with the filter slot built in. A filter rack is a frame that mounts on the return side to hold a filter. Both do the same job in different places.
Why go to a 4 inch media filter?
Far more filter surface area, so it catches more while restricting airflow less, and it lasts six to twelve months instead of one to three. It needs the deeper slot, which is the whole reason to change the base.
Does the filter go in before or after the blower?
On the return side, before the blower and before the coil. That is the point of it - everything downstream stays clean.
Do you stock these?
We keep common sizes on the shelf at 10226 Plano Rd, Suite 104 in Dallas. Bring the furnace model and the cabinet width.




