



Marshall Tufflex MER2WH White Circular Extension Ring For Round Conduit Boxes 20mm
MER2WH
Marshall Tufflex MER2WH Circular Extension Ring – 20mm, White PVC-U for Round Conduit Box Depth Adjustment
The Marshall Tufflex MER2WH Circular Extension Ring is designed to provide additional depth for 20mm round conduit boxes. Made from super high impact PVC-U, it delivers strength and durability for demanding installations in both domestic and commercial environments.
- 20mm Extension Compatibility: Designed specifically to fit 20mm round conduit boxes, allowing increased installation space.
- High Impact PVC-U: Manufactured from tough, durable PVC-U for long-lasting use in high-traffic or industrial settings.
- Secure Fitment: Offers a snug, secure connection with existing conduit boxes to maintain a neat finish.
- Improved Accessibility: Provides extra clearance for easier cable entry, connections, or adaptations.
- Professional Standard: Part of the trusted Marshall Tufflex cable management range, preferred by electricians nationwide.
Technical Specification
- Type: Circular Extension Ring
- Material: Super High Impact PVC-U
- Conduit Size: 20mm
- Colour: White
- Application: Increases depth of round conduit boxes
✅ Use the MER2WH Extension Ring to gain added space and flexibility when installing round conduit systems!

Ean Code | 5020837269086 |
Product | PVC Extension Ring |
Type | Circular |
Colour | White |
Diameter | 20 mm |
Mounting | Surface |
Material | PVC-U |
Qualifier | Plastic |
Ce Approved | N |
Fixings Included | N |
Nominal Width | 20 mm |
Included Fixings | N |
Delivery Options:
- PRIORITY DELIVERY – Next Working Day (All items in stock and ordered before 3 pm) - £7.08 inc-VAT. (£5.90 ex-VAT)
- Orders Over £100 (before VAT): We offer free standard shipping on all orders shipped to UK mainland addresses
- Orders under £100 (before VAT): Our standard delivery fee to UK mainland addresses is £5.90 ex-VAT (£7.08 inc-VAT)
*Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £12 ex-VAT for all orders (Prices subject to change).
Items requiring specialist shipping:
- Orders containing Solar Panels, Batteries and/or Inverters: Up to 50 qty will be dispatched on a pallet and incur a £120 ex-VAT delivery charge**.
**Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £180 ex-VAT (Prices subject to change).
Contact us if you have any further questions.