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Broan-NuTone 465B 4\ to 5\ Duct Expander for Kitchen Ventilation Fans, UL 94 Compliant, Black

DUCT EXPANDER: Designed to fit ventilation fans with a 4" duct connector and 5" round duct systems.
EASY CONNECTION: Allows easy connection of a kitchen ventilation fan (with 4" round duct connector) to 5" round ducting.
FLAMMABILITY COMPLIANT: Duct expander is UL 94 compliant for flammability to ensure safety.
MADE IN USA: This duct expander is made in the USA to ensure highest quality.
INVENT FAN: This duct increaser is designed to fit with our InVent fan duct connector assemblies.

4" Plastic inline round duct connector with backdraft damper..
Outside dimension of the duct fits 4" inch flex or solid ducting pipe..
Assembly: Press on chosen duct - flexible or straight - and use montage glue. tape or steel clamps tighten the connection..
Connect dryer duct, exhaust or any other duct that needs only one way airflow with this backdraft preventer to ensure required air direction, and remove polluted air from accessing habitable areas..
perfect for Heating. cooling or air conditioning - HVAC. bathroom and kitchen air exhaust. Heat-resistant from: 5 °F to 160 °F..

#1 Training tool used by Colleges, Universities and Training Centers.
SuperHeat & SubCooling charging of both R410a and R22.
Duct Calculator that calculates CFM of Metal and Flex Duct.
Access to approximately 100 free tutorials by scanning the QR code on the tool.
Pressure Drop and Sizing for - Rectangular Metal, Round Metal, AND Round Vinyl Flex.

【Size】Made of galvanized steel. Adapts 8 inches to 6 inches. Round Ducting Adaptor.
【Widely Application】Designed for bathroom extractor fans, HVAC systems, inline ventilators, cooker hoods, tumble dryers, hydroponics, kitchen..
【Adventages】Maintains airflow efficiency by creating a connection between two different sized duct openings..
【How to Use】The solid duct reducer or increaser can be used when connecting two different solid or flexible ducts or ducts to ventilators, 8 to 6 inch, or vice versa..
【Easy to Install】Put it in the two ducting, easy to install the air duct reducer..

Saves space, Allows it to fit flushed against the wall of your laundry room.
Improves dryer efficiency, Durable design protects the duct from being crushed.
Reduces fire hazard, Lint build-up is minimized due to the limited kinks and bends.
Ensures clean appearance, The Recessed Dryer Vent Box is made of high impact polystyrene.
Pack of 1, This product has a oval to round duct adapter which threads on easily to the duct and makes installation fast and easy..

The Model 504 does NOT come with a damper..
Fits 10-Inch round duct – use Model 472 transition/damper (available separately) for 8-Inch round duct.
Eliminate humidity from laundry rooms, tobacco smoke from rec rooms and workshops, or cooking fumes from kitchens with Broan’s high-efficiency utility ventilators.

Recessed dryer box, the dryer can now be pushed up against the wall of the laundry room instead of having to be positioned 5" to 6" away from the wall in order to accommodate the dryer duct.
The duct will also be completely protected from crushing and lint build-up will of course be minimized due to the limited bends.
Dryer box also has the additional features of a built-in draft blocker to help reduce cold air backdraft into the home as well as an oval to round duct adapter which requires no clamps to connect to the duct and eases installation.

The Foam Core Spiral Duct Insulation consists of two highly reflective layers of film (96-percent reflectivity).
The inner layer of insulating foam core resists conductive heat flow while a center layer of polyethylene give our product high reliability and strength (nominal thickness 5/16-Inch).
The product is an ideal alternative to other types of fibrous insulation products for attics, crawl spaces, metal building, garage doors. etc.
Ease of handling and quick installation make our Duct Insulation the first choice for insulating round or rectangular ductwork.
A thermal benefit of R-4.2 is gained when installed directly to the duct.

...en 2" x 4" studs (min. space required), perfect for spots where conventional ventilation simply wouldn't fit.
HIGH QUALITY, EFFICIENT OPERATION: Operates on 80 CFM that can ventilate a room up to 75 sq. ft. or a one car garage.
has a 1.0 Sone rating for a quiet and effective performance.
includes 4" oval and 3" round duct connections for installation flexibility.
VERSATILE FAN: Ventilation fan helps eliminate heat, humidity, odors, can be installed in either the ceiling or wall and is ideal for multi-family applications.
FEATURES: Plug-in, permanently lubricated motor, and a dynamically balanced centrifugal blower wheel for high-quality, quiet operation every time.
Fits in 2-Inch x 4-Inch ceiling or wall construction.
Greater than 50 CFM at 0.25-Inch static pressure meets ASHRAE 62.2 local ventilation requirements.
Only 1.1 sones for extremely quiet operation (quieter than equivalent competitive models).
4-Inch oval or 3-Inch round duct for installation flexibility (not available in competitive models).

Our C-Boxes are built with a 1/2″ flange all the way around the square portion which can be used for attachment or folded over..
We also have a full line of ceiling registers and hvac fittings..
The best way to regulate air flow is to install a manual volume damper in the duct run..
Connects a 8″ Round Duct to a 12 x 12 Diffuser or Register Vent..
Call us with your hole size and duct size so we can help (866) 309-9899.

Exhaust duct designed with butterfly damper for maximum airflow and energy conservation.