Q: What size slot do I need to fit the 300mm trickle vent?

A: The 300mm trickle vent fits a 13mm slot (365mm x 13mm) or two 10mm slots (2 x 120mm x 10mm with a 10mm land). Always check your frame measurements before ordering.

Q: Are these trickle vents compatible with uPVC, timber, and aluminium frames?

A: Yes — our 300mm trickle vents are compatible with uPVC, timber, and aluminium frames, making them a versatile ventilation solution for most window types.

Q: How quickly will my trickle vents be dispatched?

A: We aim to dispatch same day from our base in Cheltenham, in the heart of the Cotswolds. All orders are sent free via Royal Mail Tracked with no hidden costs.

Trickle Vents - 300mm uPVC Window Ventilation Units

High-Quality Trickle Vents for Enhanced Home Ventilation

Improve indoor air quality and maintain healthy airflow with our 300mm Trickle Vents. These slim units provide essential trickle ventilation for any room.

Made from UV-stabilised uPVC, these window trickle vents actively reduce condensation. They serve as a professional upvc window vent replacement solution.

The RW Simon Framevent FV03 is ideal for sash window trickle vents. This versatile model works perfectly as trickle vents for wooden windows too.

Why Choose Our Durable Upvc Vents:

Our window vents combine longevity with a sleek style. They are often rated among the best trickle vents for modern residential or commercial frames.

Durable Construction: UV-stabilised uPVC prevents discolouration. These upvc window vents provide years of reliable, long-lasting service.
Fully Controllable: Features a positive open/close tab. This allows you to manage the air vent direction for up-draught or down-draught flow.
Integrated Flyscreen: The external hood includes a built-in screen. This keeps insects out without compromising the efficiency of your air vents.
Versatile Compatibility: Use these on timber or as aluminium trickle vents. These upvc trickle vents offer a truly universal fit.
Easy Installation: Quick-fit ends and fixing screws are included. Fitting these replacement trickle vents is a simple, stress-free DIY task.
Low Carbon Footprint: Proudly manufactured in England. Choose a sustainable local option when you buy trickle vents online.

Technical Product Specifications:

Our double glazing vents offer performance you can trust. We stock several types of trickle vents to suit your specific window profile.

Size: Each of these 300mm trickle vents fits 13mm or 10mm slots. This slimline trickle vents design is perfect for narrow frames.
Classic Colours: Select from white trickle vents, black trickle vents, or brown trickle vents to match your existing window frames.
Modern Tones: Our grey trickle vents and anthracite trickle vents (RAL 7016) are popular choices for contemporary window air vents.
Performance: Tested to BS EN 1026:2016 for weather tightness. These trickle vents for upvc windows ensure high acoustic performance.

Fixing Instructions:

Route or drill 10mm or 13mm holes through the frame.
Place the unit centrally over the routed slots.
Secure the unit using the provided fixing screws.

We recommend applying a silicone seal to your new units for maximum weather protection and a professional finish.

What’s in the Box

The pack contains: 1 Internal Vent, 1 External Hood, 4 End Caps, and 4 Screws. Ideal for a kitchen vent or a bathroom vent project.

Free UK Postage & Packing:

Free Postage: Fully tracked via Royal Mail Tracked.
Same-Day Despatch: Orders are processed quickly from our local Cheltenham, UK warehouse.
VAT Included: We provide transparent pricing with no hidden costs at checkout.