From The Anvil Trimvent 4000 Hi Lift Box Vents

From The Anvil Trimvent 4000 Hi Lift Box Vents are surface-mounted aluminium slot ventilators for windows, designed to fit over a 13mm slot. The Trimvent 4000 Hi Lift design features a compression closing action and a revised design intended to improve performance and comply with updated regulations.

Sizes and finish options

Choose the version that matches your window and ventilation requirements. Two sizes are available across this range, both with a 17mm height: 255mm x 17mm and 400mm x 17mm.

Finish options across the range include understated neutrals to suit different frame colours, with Black, Brown and White available (finish availability may vary by size).

• Product type: Hi lift box vent / slot ventilator
• Fitting: Surface mounted, fits over a 13mm slot
• Action: Compression closing
• Sizes: 255mm x 17mm or 400mm x 17mm
• Finishes: Black, Brown, White