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Products
Products in focus
Passive House RHR
Matte Rainline
Ultra BT
DCV One
FNC1U damper
LETA K heat recovery unit
The Compact Box
Ventilation systems
Ducting
Demand control ventilation
Air diffusion
Fire safety
Air Movement
Acoustics
Residential ventilation
Heating & cooling
Marine
Profile systems
Rainwater gutter & drainage
SRP roofing
Standing seam roofing
Roofing fixings
Colours
Magestic galvanised
Products
Ventilation products
Spiral ducting & fittings
Air terminal devices
Air control
Fire protection
Maintenance
Fans & AHUs
Flexible ducting
Stainless steel flue
Support systems
Sound attenuation
Flange & stiffener
Roof flashings
Insulation materials
Tools & fixings
Domestic MVHR
Thermal comfort ventilation
Building products
Rainline rainwater gutter & drainage
Seamline standing seam roofing
Coverline seam roof panels
Unite roofing fixings
Solutions
Applications
Hotels
Schools
Homes
Hospitals
Leisure
Industrial
Offices
Build stage
New build
Renovation
Case studies
Ventilation case studies
Profile case studies
Customer feedback
Indoor air quality
Good indoor air
Indoor climate videos
Benefits of fresh air
Support
Downloads
BIM objects
Document search
Price lists
Brochures
Training
CPDs
Fire damper installation
Ventilation software
LindQST
CADvent
TEKNOsim
Leakage tester
Profile software
Information gateway
RevitTools
AutoCAD
Apps
Vent Tools
OneLink
OneSet
Websites
LindabProfile.co.uk
Pay Lindab
Sustainability
For a better climate
Strategy & goals
Sustainable sourcing
Sustainable construction
Decarbonised steel
Report
Activities
Fossil-free steel
Systematic safety improvements
GreenCoat partner
All activities
Quality
Certification
Environmental product declarations
Associations
Research & development
About Us
About Lindab
History
Lindab in brief
Purpose & values
Strategy
Business areas
Our partners
Ductmann
DiSYS Technologies
HAS-Vent
Distributors & Customers
Suppliers
Careers
Work at Lindab
Benefits
Meet our people
Jobs
News
News & blog
Social media
Keep updated
Contact
Log in
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Start uk
Ventilation products
Spiral ducting & fittings
Vent standard duct fittings
Reducers
RL
Reducer
Vent long, tangential, hand made reducer with approx. 35° angle.
Characteristic
Value
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