• For reducing or increasing ventilation sizes
• Available in: 5"-4", 6"-4", 6"-5", 8"-5", 8"-6", 10"-6", 10"-8", 12"-8", 12"-10"

Free delivery on orders over £60*
- UK Mainland only

Standard Delivery £4.95
- Heavy / Large item surcharge £2 per item
- 1-3 Days**
- UK Mainland only
Express Delivery £8.95*
- Next Working Day**
- UK Mainland only
Scottish Highlands £15.95*
- 2-5 Days**

*Can not be used with Heavy / Large items
**If ordered before 2pm cut off

Please See Delivery and Returns page for more details.