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Quick specs
Brand
Frigidaire
Tonnage
4 Ton
SEER2
13.8
Refrigerant
R-454B
Compressor Type
Single-Stage
Not sure this fits your unit?
Call us with your model number and we'll confirm the right part before you order.
4 Ton Frigidaire 13.8 SEER2 R-454B Single Stage Air Conditioner Split System
Frigidaire Essentials Line·Cooling-Only Split System
$4,255.96
-
- 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
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4 Ton Frigidaire 13.8 SEER2 R-454B Single Stage Air Conditioner Split System
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.
$4,255.96
-
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
Brand
Frigidaire
Tonnage
4 Ton
SEER2
13.8
Refrigerant
R-454B
Compressor Type
Single-Stage
Not sure this fits your unit?
Call us with your model number and we'll confirm the right part before you order.
Why Frigidaire is a homeowner favorite
The Frigidaire FSA4BE and B65B are a cooling-only split system in the Essentials line. The FSA4BE stays outside and rejects heat while the B65B air handler stays inside and pushes cooled air through the ducts. Matched systems are rated up to 14.3 SEER2, and both sides use R-454B, so the install already meets the 2025 refrigerant rules.
Outside, the FSA4BE uses a single-stage Copeland scroll compressor and a heavy-duty PSC fan motor. The condensing coil is all aluminum, which cuts weight and refrigerant charge and stands up better to corrosion than an older copper-tube coil. Side panels come off without lifting the top grille, so a technician can reach the compressor and controls without tearing the cabinet down. The unit ships pre-charged with R-454B, and a liquid-line filter drier is included for field installation. A high-pressure switch protects the system if pressures climb too high.
The B65B is the indoor match used on the published ratings. It is a multi-position air handler, so it can go upflow, downflow, or on its side in a closet or attic. The cabinet is insulated, the evaporator coil is aluminum, and filter access does not require tools. Electric heat strips can be added if the house still needs backup warmth from a separate heat source.
This system is built for homes that already have a furnace or electric heat and only need a new air conditioner. It uses a standard 24-volt thermostat, not a communicating control.
Key features
- Frigidaire Essentials Line — FSA4BE condenser with B65B air handler
- Cooling-Only Split System — 13.8 SEER2 with R-454B
- Matched System — outdoor and indoor units rated together
- Homeowner Favorite — reliable, straightforward comfort
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.
Customer reviews
What buyers are saying
Verified reviews from customers who purchased this product.
5.0
6 verified reviews
WD
Wally D
The 4 Ton Frigidaire 13.8 SEER2 R-454B Single Stage Air Conditioner Split System blew me away with its powerful performance and unbeatable price. This equipment offers exceptional quality and efficiency that’s truly surprising for such an affordable option!
QT
Quincy T
I am absolutely thrilled with the 4 Ton Frigidaire 13.8 SEER2 R410A Single Stage Air Conditioner Split System—it cools my entire home effortlessly while being incredibly energy-efficient! The price is unbeatable, and the performance is outstanding, keeping my space comfortable even during the hottest days.
WO
Will O
The 4 Ton Frigidaire 13.8 SEER2 R410A Single Stage Air Conditioner Split System is a real gem—I was shocked by its powerful performance and efficiency at such an affordable price! It cools my entire house quickly and efficiently, and my energy bills are noticeably lower since I installed it.
AB
Amiri B
I recently purchased the 4 Ton Frigidaire 13.8 SEER2 R410A Single Stage Air Conditioner Split System, and I’m beyond impressed with the unbeatable price, top-notch equipment, and the outstanding performance—my home has never felt more comfortable!
G
Gabriel
Prepare to be blown away by the cooling prowess of the 4 Ton Frigidaire 13.8 SEER2 R410A Single Stage Air Conditioner Split System! The unbeatable price, coupled with top-notch equipment and exceptional performance, transforms your space into an oasis of coolness and savings. Embrace the extraordinary value of this system, where every moment is a refreshing delight!
D
Daniel
Absolutely impressed by the 4 Ton Frigidaire 13.8 SEER2 Single Stage Air Conditioner Split System! The price for such top-tier equipment was a pleasant surprise, and its single-stage performance has kept my home consistently cool and comfortable—remarkable value for money!
