Overview
Phoenix lay-flat ducting, 250 mm (10 inch) round x 75 m roll, 6 mil thickness. Phoenix part number 4024935.
Lay-flat duct is how you get conditioned or scrubbed air from a machine to the place that actually needs it. It ships flat on a roll, you cut the length you need, and the rest stays on the roll for the next job.
What it fits
Any machine with an outlet of 250 mm (10 inch) or smaller — air scrubbers, negative air machines and dehumidifiers. Commonly used on:
- Ultimate 340 dehumidifier
- Phoenix 200, 200 Max, 200 HT, R175, R200 and 270 HTX dehumidifiers
- Phoenix Mini Guardian and Guardian air scrubbers
- Dri-Eaz HEPA 500 air scrubber
- Razorback MaxxDry 85L
- Razorback MaxxGuard
- Dri-Eaz BD2500 Revolution fitted with the Duct Kit (F530) — see below
The right duct for a ducted BD2500
The Dri-Eaz Duct Kit (F530 / 106996) fits a 10 inch (254 mm) duct ring to the process air outlet of the BD2500 Revolution. Dri-Eaz specify 16 inch lay-flat ducting for that ring — 16 inch is the flat width, and it opens to a circle of roughly 10 inches. This roll is that duct. It is the only stocked CCW roll that will go over the F530 ring.
Specifications
- Diameter: 250 mm (10 inch)
- Roll length: 75 m
- Thickness: 6 mil
- Phoenix part number (OEM code): 4024935
Two ways duct is sized — read this before you order
The Phoenix rolls are described by their round diameter: this one is 250 mm across when inflated, the 355 mm roll is 355 mm across.
The heavier polyethylene rolls are described by their flat width, which is a different number for the same duct. Layflat Duct 355 mm x 152 m is 355 mm laid flat and opens to only about 225 mm; Layflat Duct 300 mm x 362 m opens to about 200 mm.
So a 355 mm Phoenix roll and a 355 mm flat-width roll are not the same duct, and they do not fit the same machines. Work from the machine outlet diameter, not from the number in the title.
Using it well
Keep runs short and straight. Every metre of duct and every bend costs you airflow, and airflow is the whole point of the machine you attached it to. A 30 metre run to save moving a machine 10 metres is a poor trade.
Cut generously at the collar. Leave enough to fold back and clamp properly — duct that pulls off a collar mid-job on a negative air set-up breaks containment, which is a serious problem on a remediation site.
Support long runs. Lay-flat duct inflates and sags. Unsupported, it lies on the floor, kinks, and chokes the airflow you were trying to deliver.
Do not run it through a doorway a door will close on. Obvious, and it happens on every second job.
Cut it, do not save it
Used duct from a fire, sewage or mould job is contaminated. It is a consumable and it costs a fraction of the risk of cross-contaminating the next site. Cut what you need, use it, and dispose of it — the roll exists so that is easy to do.
Clean water losses in a controlled environment are a different judgement, but even then check the inside before you re-use.
Frequently asked questions
How much is on the roll?
75 metres, cut to length as you need it.
What size machines does it suit?
Machines with an outlet of 250 mm (10 inch) or smaller. For a 355 mm outlet use the Phoenix 355 mm roll.
Is this the duct for the Dri-Eaz BD2500 duct kit?
Yes. The F530 kit uses a 10 inch duct ring, and this is the 10 inch roll.
Can I re-use it?
On clean water work, sometimes. On contaminated work, no.
Is a duct collar included?
No — collars are machine-specific parts. Tell us your machine and we will check which one you need.
Setting up containment or a ducted dehumidifier? Tell us the machines and the layout and we will make sure the duct size and collars match before you order.
