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Quick specs
Part Type
SlimFit filter & insulated frame kit
Filter Thickness
1"
Frame Size
23-1/2"
Fits
Trane / American Standard air handlers
Not sure this fits your unit?
Call us with your model number and we'll confirm the right part before you order.
TRANE AMERICAN STANDARD SlimFit Filter Rack with Insulated Frame (23.5″) BAYSF1235BAA
Genuine OEM SlimFit Rack·Includes 1 in. Filter
$172.39
-
- Free shipping — most items ship by the next day
Licensed HVAC technician required. Must be installed by a certified professional. Improper installation voids the manufacturer warranty.
Secure payment
VISA MC AMEX DISC PayPal Affirm CHECK
TRANE AMERICAN STANDARD SlimFit Filter Rack with Insulated Frame (23.5″) BAYSF1235BAA
Licensed HVAC technician required. Must be installed by a certified professional. Improper installation voids the manufacturer warranty.
Need help? (888) 292-0874
- Free shipping — most items ship by the next day
Secure payment
VISA MC AMEX DISC PayPal Affirm CHECK
In stock
In most items, small items ship same day. Complete systems ship next business day.
$172.39
-
Need help? (888) 292-0874
- Free shipping — most items ship by the next day
Secure payment
VISA MC AMEX DISC PayPal Affirm CHECK
Quick specs
Part Type
SlimFit filter & insulated frame kit
Filter Thickness
1"
Frame Size
23-1/2"
Fits
Trane / American Standard air handlers
Not sure this fits your unit?
Call us with your model number and we'll confirm the right part before you order.
TRANE AMERICAN STANDARD SlimFit Filter Rack with Insulated Frame (23.5″) BAYSF1235BAA
Improve your home’s indoor air quality with the genuine Trane BAYSF1235BAA SlimFit Filter Rack and 1-inch filter kit. This OEM replacement part delivers efficient filtration for compatible Trane HVAC systems while maintaining excellent airflow and system performance.
Key Features
- 1″ Pleated Filter Included: Captures dust, dirt, pollen, pet dander, and airborne particles as small as 3-10 microns (MERV 4 rating).
- Insulated Frame: Features R-4.2 insulation on the hinged front door to reduce condensation and improve energy efficiency.
- Low-Profile Design: Compact 23.5″ frame (approximately 23.5″ x 21″ x 2″ overall) with painted 18-gauge steel that matches Trane cabinet aesthetics.
- Hinged Door: Allows for quick, tool-free filter changes—replace every 90 days for optimal performance.
- Easy Installation: Pre-drilled holes, included gasket, and only 4 screws required. Works in upflow or downflow orientations.
Benefits
- Better Indoor Air Quality: Traps allergens and contaminants, helping reduce allergy symptoms and keeping your home cleaner.
- Protects Your HVAC System: Prevents dust buildup on coils and components, extending equipment life and maintaining efficiency.
- Energy Efficient: Insulation and proper filtration support optimal airflow and reduce strain on your system.
- Convenient Maintenance: Simple hinged access makes filter replacement fast and hassle-free.
Compatibility
- Designed for Trane TEM Series Air Handlers (provides filtration where none is built-in).
- Compatible with Trane S-Series Furnaces (side return, with or without transitions; B-width cabinets in upflow/downflow).
- Fits specific cabinet widths (typically for 36-60k BTU range models—verify with your unit’s service literature).
Commonly Searched Keywords: Trane SlimFit filter rack, BAYSF1235BAA, 23.5″ filter frame, Trane air handler filter kit, 1″ insulated filter rack, TEM air handler filter, S-Series furnace filter, Trane replacement filter frame, SlimFit 23.5.
This genuine Trane part ensures perfect fit and reliable performance.
Key features
- Genuine OEM SlimFit Rack — with 23.5 in. insulated frame
- Includes 1 in. Filter — efficient filtration
- Improves Indoor Air Quality — for compatible Trane systems
- Trane and American Standard Fit — direct replacement
Why homeowners choose NAW
Genuine OEM parts
Every part we sell is the real thing — authorized, factory-genuine, and backed by the full manufacturer warranty.
Easy online ordering
Find your part by model number, add to cart, and get it delivered to your door — no middleman, no markup.
30-day hassle-free returns
Ordered the wrong part? Send it back within 30 days.
Help when you need it
Not sure if this is the right part? Call us at (888) 292-0874 and we’ll help you find the correct replacement.
Specifications
Overall Dimensions approx. 23.5" x 21" x 2"
MERV Rating MERV 4
Insulation R-4.2 on hinged front door
Frame Material Painted 18-gauge steel
Particle Capture 3-10 microns
Orientation Upflow or downflow
Filter Change Interval Every 90 days
Customer reviews
What buyers are saying
Verified reviews from customers who purchased this product.
5.0
3 verified reviews
KC
Kyle C
The TRANE AMERICAN STANDARD SlimFit 1″ Filter with 23 1/2″ Filter Rack is an incredible addition, offering perfect filtration and a hassle-free setup that keeps my system running smoothly. With its excellent price and durable performance, this filter is an essential upgrade for anyone seeking improved air quality and efficiency!
VD
Ver D
The TRANE American Standard SlimFit 1″ Filter with 23 1/2″ Filter Rack is an incredible value, offering exceptional quality and performance at an unbeatable price! This easy-to-install filter system has made a huge difference in my air quality, providing reliable filtration and keeping my system running efficiently.
AZ
Allen Z
The TRANE AMERICAN STANDARD SlimFit 1″ Filter with 23 1/2″ Filter Rack is an outstanding addition to my HVAC system at a great price! Its superior performance ensures clean air and seamless system operation, making it a must-have for optimal home comfort.
