4" Trim Plate (90°)

Our Price: £31.70 Incl. VAT: £38.04

Availability: In stock

Product Code: TWTC9004

4" 90° Trim Collar 90mm W (Round)



Twin wall Warranty

4" Trim Plate (90°) is designed to neaten holes in both walls & Ceilings.
Made of Stainless Steel
Same day dispatch if ordered before 2pm 


90 Deg Trim Collar 90mm W (Round)


View Our Installation Guides:

Bungalow Internal Installation

Bungalow Installation guide

External House Installations

External Installation

Straight Internal Installation

Ventilation Installations


Our twin wall insulated is a simple push-fit  joint system. Build your system by placing each piece on top of the previous and push together to make the join. This is the simplest system to construct on the market today.

Building Regulations

Download Building Regulations Document J (effective October 2010) below

Download Document J

(Right click link, then select "save file as..")