Top 10 110mm to 100mm Reducer UK – Ducting

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1. Kair

Kair Ducting Reducer 110mm to 100mm Duct Pipe Reduction Connector for Extract Fans and Ventilation Units

Kair - Compatible with 110mm and 100mm ducting systems including the extensive Kair range of fittings, outlets, and grilles. Perfectly suited for ducting your tumble Dryer, In-Line Fans, Bathroom or Kitchen extractor fan, Hydroponics, or Cooker Hoods and other ventilation applications. On one side there is a 100mm 4 inch male spigot. On the other side there is a 110mm female spigot. Will fit over 110mm straight ducting pipe or soil pipe. Adaptor to convert between 110mm and 100mm ducting. Will fit into 100mm straight ducting.
Part NumberFBADOM120.FC

2. Mission Rubber

115mm Flexible Rubber Boot Reducer Coupling Adaptor Pipe Connector Joiner, 125mm to 100mm, Adaptor Coupling MAC 5144 110mm

Mission Rubber - External compression seal. Adaptor for different outside diameters. Resistant to 06 bar. For above and below ground. Rubber flexible adaptor coupling mac 5144 110mm - 125mm to 100mm - 115mm.
BrandMission Rubber
ManufacturerMission Rubber

3. Hon&Guan

Hon&Guan Straight Ducting Reducer Adaptor for Extractor Fan 100mm to 110mm

Hon&Guan - Made of durable PVC material; High-quality performance and reliability. Durable, lightweight, economical and resistant to corrosion and chemicals. Perfectly suited for ducting your tumble Dryer, In-Line Extract Fans, Bathroom or Kitchen extractor fan, Hydroponics, or Cooker Hood. Pvc plastic rigid ducting is perfect for connect your hose. 4. 3" to 3" ducting increaser/reducer.

4. Swiftair

100mm / 4.33" to 4", Drainage Soil Pipe Extractor Fan ducting Reducer 110mm

Swiftair - 110mm to 100mm perfect for the size difference between Drainage pipe and ventilation pipe. You may need a 110 connector, 100mm will fit into 100mm ducting. 110mm diameter could be Male or Female depending on drainage pipe.
Part NumberR1104

5. HG Power

HG POWER Duct Adaptor Straight Duct Reducer / Increaser Connector for Extractor Ventilation Duct Fan 110mm to 100mm

HG Power - 110mm female to 100mm Male Round Ducting Adaptor. Made of high quality PVC plastic material, makes it durable and reliable. For ducting and venitlation equipment in both the inner and outer of the building. Perfect for ducting your tumble dryer, In-Line Extract Fans, Bathroom or Kitchen extractor fan, Hydroponics, or Cooker Hood. Our ducting adaptor is lightweight, economical and resistant to corrosion and chemicals.
BrandHG Power
ManufacturerHG POWER

6. Katigan

Katigan Ventilation Pipe Reducer Pipe Air Duct Pipe Connector for Inline Ventilation System110-100mm

Katigan - Perfect to connect 110mm to 100mm duct system. Perfectly suited for bathroom, home, apartment, kitchens, office, hotel HVAC system. Made of high quality material, environmentally friendly, and hard. Thickening treatment, reasonable transition, suitable for transitional connection in the pipe. Easy installation, using duct tape or duct clamps to connect air duct.
Height10 cm (3.94 Inches)
Length12 cm (4.72 Inches)
Weight0.08 kg (0.17 Pounds)
Width12 cm (4.72 Inches)
Part Number500123604A3


Circular Spigot Adapter 110mm to 100mm Duct Reducer

DOMUS - System 110 end usually female dependant on manufacturer - connects over 110mm OD straight pipe:. Outer diameter: 113mm | Inner Diameter: 110mm. System 100 end male - connects into System 100 straight ducting. Outer diameter: 98mm | Inner Diameter: 95mm.
Part Number120

8. Flex Seal

Flexible Rubber Reducer Coupling Adaptor Pipe Connector Domestic Waste 45 – 38mm 40mm to Soil 112 – 100mm 110mm

Flex Seal - Ideal to connect Domestic Waste to Soil Sewer. No special tools required. 112 – 100mm to 45 – 38mm. Flexseal Quality.
BrandFlex Seal
Height10 cm (3.94 Inches)
Length12.6 cm (4.96 Inches)
Width12.6 cm (4.96 Inches)
Part NumberF91623


Circular Spigot Adapter 150mm to 100mm Duct Reducer

DOMUS - 150mm 6 inch to 100mm 4 inch adaptor. 155mm outside / 150mm inside to 101mm outside / 98mm inside. 60mm deep.
Part NumberET-A655_SML


Round Pipe Air System Element, Connector for Ventilation Ducting, 150mm / 3, Ø 80, 6 inch PVC Universal Reducer

LIRAST - Wide temperature range: From -15°C to +60°C. Simply cut the connector to the Required Size and Connect Your Ducts. Safe to use // quick and Easy to Install. Universal reducer for ventilation systems with a Diameter of 80 100 120 125 150 mm // 3 4 5 6 inch. Compatible with vent, Dryer, Bathroom Fan, Air Exhaust Hood and etc.