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.

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.

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.

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.

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

Product ID: 25887062

Details

Brand
ALLEGRO
Color
White
Electric fan design
Blower
Mounting Type
Floor Mount
Power Source
Corded
Product Dimensions
6.9"D x 24.2"W

💨14" diameter inflates for max airflow

📏500 ft length for extended reach

🛡️Moisture & chemical resistant durability

¥125892

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Description

💨 Elevate your airflow game with the ultimate flexible ducting solution!

MASSIVE 500 FOOT ROLL - Unrivaled length ensures you cover large projects without interruption or multiple connections.
VERSATILE JOBSITE READY - Perfect for water restoration, renovations, and confined space ventilation with reliable performance from 41°F to 150°F.
ENGINEERED FOR FLEX STRENGTH - Lightweight polyethylene tubing resists splitting and tearing, built to last through tough jobsite conditions.
COLLAPSES FLAT FOR EASY STORAGE - Innovative lay-flat design means effortless transport and compact storage when airflow stops.
TRUSTED INDUSTRY STANDARD SINCE 1987 - Backed by Allegro Industries’ 35+ years of innovation and reliability in industrial ventilation.

The Allegro Industries 9500-500 Lay Flat Ducting is a 500-foot long, 2 mil thick clear polyethylene ventilation tube that inflates to 14 inches in diameter. Designed for temporary air transfer, it collapses flat for easy storage and is resistant to moisture, chemicals, and microbial growth. Ideal for construction, water restoration, and confined space ventilation, it performs reliably across a wide temperature range and is trusted by professionals since 1987.

Specifications

ASIN	B00TD6HZFU
Best Sellers Rank	#129,273 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #289 in HVAC Ducting
Blade Length	22 inches
Blade Material	Plastic
Brand	ALLEGRO
Brand Name	ALLEGRO
Collection Name	Industrial Fans
Color	White
Control Method	Touch
Controller Type	Button Control
Customer Reviews	4.5 out of 5 stars 54 Reviews
Electric Fan Design	Blower
Electric fan design	Blower
Finish Type	Unfinished
Global Trade Identification Number	00721577287648
Included Components	Item
Indoor Outdoor Usage	Indoor
Installation Type	Temporary
Item Dimensions D x W x H	6.9"D x 24.2"W x 6.8"H
Item Type Name	Allegro 9500-500 500ft Lay Flat Duct, for 8-12in
Item Weight	19 pounds
Manufacturer	Allegro Industries
Material	clear polyethylene
Model Name	9500-500
Model Number	9500-500
Mounting Type	Floor Mount
Number of Packs	1
Part Number	9500-500
Power Source	Corded Electric
Product Dimensions	6.9"D x 24.2"W x 6.8"H
Recommended Uses For Product	Exhausting
Room Type	Home Office
Size	500' long 2 mil thickness 22" (55.8cm) diameter
Special Features	Lightweight
Style	Modern
Switch Type	Push Button
UPC	741851950112 721577287648
Unit Count	1 Count
Warranty Description	12 months

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TrustScore 4.5 | 7,300+ reviews

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Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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

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¥125892

Duties & taxes included

In stock

Sold byAmazon JapanDelivered 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 Japan.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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The product quality is outstanding. Exactly what I needed for my work.

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