Allegro Industries 9500-500 Lay Flat Ducting 500', fits 8" and 12" Blowers

Q: I need a smaller length roll of either 8" or 12" : polyethylene Clear polyethylene 500’ long; 2 mil thickness; 22” (55.8cm) diameter Can you help?

We don't offer a smaller length roll but this is designed to be cut to the lenth you need. If you only need 200' just roll out that amount and cut, save the rest for later use.

Q: Seems this should be 22" wide, not diameter, right? Diameter is 14" max, making a 44" circumference or 2 x 22" (folded flat)

It fit perfectly on my machine that has a 12" discharge. It is 14", not 22" when in the tubular shape.

Q: Does this come with instructions to mount it on the fan? How it fixed to it?

We simply use duct tape or shrink wrap tape. A couple small pieces to hold it to the fan and then wrap the circumference.

Q: Can this be used on runs with bends? How do I secure it so I can ventilate out a window?

It can curve around a corner but probably won't work on a 90 degree bend. As far as securing it, maybe duct tape.

Product ID: 25887062

Secure Transaction

Details

Brand
ALLEGRO
Color
Clear
Electric fan design
Blower
Power Source
Corded
Style
Modern
Product Dimensions
6.9"D x 24.2"W

💨14" diameter inflated

📏500 ft roll length

🛡️Moisture & chemical resistant

Frequently Bought Together

Allegro Industries 9500-500 Lay Flat Ducting 500', fits 8" and 12" Blowers

ALORAIR Air Scrubber with 3 Stage Filtration, Stackable Negative Air Machine for Industrial and Commercial Use, Heavy Duty Air Cleaner with MERV-10 Filter, HEPA/Activated carbon Filter, Blue

Mounto 10-Pack Pre-Filter Replacements for HEPA 500 Air Scrubber, Enhanced Dust Capture, Easy Installation, Extends HEPA Filter Life

Description

💨 Stay ahead with the ducting pros trust — flexible, tough, and ready to roll!

BUILT TO ENDURE - Resists moisture, chemicals, and microbial growth for tough environments
ULTRA LONG REACH - 500 feet of flexible ducting for expansive jobsite coverage
EFFORTLESS AIRFLOW - Inflates to 14" diameter for optimal ventilation efficiency
SPACE SAVING DESIGN - Collapses flat when airflow stops for easy transport & storage
TRUSTED INDUSTRY STANDARD - Proven reliability since 1987 by Allegro Industries

The Allegro Industries 9500-500 Lay Flat Ducting is a 500-foot roll of clear polyethylene tubing that inflates to a 14-inch diameter, designed for temporary ventilation in construction, restoration, and confined spaces. Lightweight yet durable, it resists tearing, moisture, chemicals, and microbial growth, collapsing flat for easy storage. Trusted by industry professionals since 1987, it performs reliably across a wide temperature range and fits blowers up to 14 inches.

Have a Question? See What Others Asked

I need a smaller length roll of either 8" or 12" : polyethylene Clear polyethylene 500’ long; 2 mil thickness; 22” (55.8cm) diameter Can you help?

Seems this should be 22" wide, not diameter, right? Diameter is 14" max, making a 44" circumference or 2 x 22" (folded flat)

Does this come with instructions to mount it on the fan? How it fixed to it?

Can this be used on runs with bends? How do I secure it so I can ventilate out a window?

Reviews

G**R

tempory air ducting

Great for creating a negative pressure area in a house when used with floor blowers. We use several air floor blowers to create the negative pressure within an area so that when we are doing sheet rock sanding or painting that the fumes or the air particles are removed from the area instead of spreading through out the area with the internal air system.

19.06.2022

M**K

Worked Good

Ran about 200 ft from the blower and it worked good. much cheaper than 200 ft of pipe or collapsible duct.

16.10.2018

M**C

Good Quality

Good quality

30.10.2018

T**P

I got this ducting for stock & have not yet ...

I got this ducting for stock & have not yet used any of it. It appears to be adequate for our negative air machine that we use in occupied buildings that have strict dust policies such as hospitals.

30.08.2016

A**X

It came dusty and open

The product itself is probably good enough to do temporary ducting but if you buy something new you expect a new product. It came partially unrolled and very dusty.

20.01.2023

J**Y

C-

Material too thin.

30.08.2018

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products