It looks like this has a 3" duct connector. Are there any issues connecting it to a 4" duct, other than needing a 3" to 4" transition connecor?

There shouldn't be any issues as long as you have the right duct connection. The fan works well and is still quiet after 2 years of use.

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Delta BreezSlim SLM70H 13.1W Exhaust Bath Fan with Humidity Sensor

Product ID: 51122359

Details

Brand
breez
Color
With Humidity
Electric fan design
Exhaust Fan
Mounting Type
Ceiling Mount
Power Source
DC
Product Dimensions
7.2"D x 7.5"W

⚡13.1W ultra-efficient power

💧Auto humidity sensor >60%

🔇Whisper-quiet 2.0 sones

668.11 DT

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Description

💨 Breathe smarter, not louder — the future of bathroom ventilation is here!

DUAL MOUNT FLEXIBILITY - UL approved for ceiling or wall installation, adapting seamlessly to your bathroom layout.
WHISPER QUIET OPERATION - Runs at a barely-there 2.0 sones, perfect for peaceful mornings and late nights.
COMPACT RETROFIT READY - Slim 7.5" x 7.25" design fits tight spaces and replaces old fans hassle-free.
SMART HUMIDITY ACTIVATION - Automatically kicks in above 60% humidity for fresher air without lifting a finger.
ENERGY STAR CERTIFIED EFFICIENCY - Consumes just 13.1 watts with a brushless DC motor, saving energy and your bills.

The Delta BreezSlim SLM70H is a compact, Energy Star qualified bathroom exhaust fan featuring a brushless DC motor for ultra-efficient 13.1W power consumption. It automatically activates when humidity exceeds 60%, ensuring optimal air quality while running quietly at 2.0 sones. Designed for easy retrofit, it fits small spaces (7.5" x 7.25") and supports both ceiling and wall mounting, making it a versatile, modern upgrade for any bathroom.

Specifications

ASIN	B01D91PHR2
Air Flow Capacity	70 cfm
Best Sellers Rank	#52,960 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #154 in Household Ventilation Fans
Blade Material	Plastic
Brand Name	breez
Color	With Humidity Sensor
Control Method	Touch
Controller Type	Button Control
Customer Reviews	4.2 4.2 out of 5 stars (327)
Electric Fan Design	Exhaust Fan
Included Components	FAN
Indoor Outdoor Usage	Indoor
Installation Type	Ceiling Mount, Wall Mount
Item Dimensions D x W x H	7.2"D x 7.5"W x 3.9"H
Item Weight	4 pounds
Light Type	LED
Main Power Connector Type	NEMA 5-15 plug
Manufacturer	Delta Electronics (Americas) Ltd
Material	Metal
Model Name	BreezSlim
Model Number	SLM70H
Motor Type	brushless DC motor
Mounting Type	Ceiling Mount,Wall Mount
Noise Level	1 sones
Number of Blades	5
Number of Power Levels	1
Number of Speeds	1
Part Number	SLM70H
Power Source	DC
Recommended Uses For Product	Air Circulation, Home, Indoor
Room Type	Bathroom
Size	70 CFM
Special Features	LED Light
Specification Met	Energy Star, UL
Style	With Humidity Sensor
Switch Type	Push Button
Theme	Bathroom Exhaust Fan with Humidity Sensor
UPC	885917001650
Unit Count	1 Count
Voltage	120 volts
Wattage	13.1 watts

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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668.11 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Tunisia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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