The Verplas 125mm Louvred Grille With Flyscreen (VKC268F/S) is a fixed external wall terminal for Verplas's round 125mm ducting system, combining weather-resistant louvre blades with a built-in insect flyscreen behind the front face. Moulded in tough, UV-stabilised polypropylene, it fits directly onto the rear 125mm round male spigot, giving a neat, low-profile external finish for extract or intake ventilation runs.
The angled louvre blades shed driving rain while remaining permanently open, so there's no shutter mechanism to commission, adjust, or maintain. The integrated flyscreen sits behind the louvres to keep insects out of the ductwork, and the front panel separates from the rear spigot plate for cleaning or mesh access. This listing covers all five standard finishes — White, Beige, Brown, Terracotta, and Black — sharing identical dimensions and performance.
Key Features
Weather-Resistant Louvres
The angled blade profile deflects wind-driven rain away from the duct opening while the grille stays permanently open — no shutters or moving parts to seize, stick, or need adjustment over time. Blades should be installed pointing downwards for optimal weather performance.
Integrated Insect Flyscreen
A fitted mesh flyscreen sits directly behind the louvre face, stopping insects and debris entering the ductwork alongside the grille's fixed weatherproof louvre design.
Direct Round Male Spigot Fit
The rear 125mm male spigot pushes straight into 125mm round rigid ducting, telescopic pipe, or flexible hose (fitting internal diameters of 125mm ±0.4mm), keeping the installation quick and the external profile flush.
UV-Stable Polypropylene
Moulded in polypropylene chosen for its resistance to UV degradation and weathering, rated for continuous use between -15°C and +60°C.
Serviceable Front Panel
The louvre front can be separated from the rear spigot plate, allowing the flyscreen mesh to be cleared of lint and debris, or replaced, without removing the grille from the wall.
Matched Colour Range
Available in White, Beige, Brown, Terracotta, and Black RAL-matched finishes, allowing the grille to be colour-coordinated with brickwork, render, or existing Verplas ducting accessories.
Free Area Confirmed
The minimum free area of 6,123mm² for this grille size is independently confirmed by two UK distributors (TLC Electrical and BPC Ventilation), both citing this figure for the 125mm Verplas louvred grille. Installers with airflow-critical designs should still confirm current performance data directly with Verplas before specifying.
Technical Specification
| Product Identity |
| Manufacturer |
Verplas |
| Product Code (SKU) |
VKC268F/S |
| Product Name |
125mm Louvred Grille With Flyscreen |
| System |
125mm round ducting |
| Dimensions & Construction |
| Spigot Size |
125mm round (fits 125mm ±0.4mm internal duct) |
| Overall Face Dimensions |
Approx. 155 x 155mm (see source note below) |
| Material |
Polypropylene |
| Weight |
0.097 kg |
| Connection Type |
Male spigot (rear-fitting) |
| Grille Style |
Fixed louvre with integrated flyscreen, non-adjustable |
| Operating Temperature Range |
-15°C to +60°C |
| Airflow Performance |
| Minimum Free Area |
6,123mm² |
Dimension Source Note
The overall face-plate dimension of 155 x 155mm, with four fixing screw holes, has been confirmed via a retailer's direct customer-service response referencing this specific grille. This figure is not independently cross-checked against a second distributor or a Verplas manufacturer drawing, as the official VKC268F/S data sheet PDF is an image-only scan with no extractable dimension text.
Colour Variants
| Colour |
RAL Reference |
SKU |
| White |
RAL 9003 |
VKC268F/S |
| Beige |
RAL 1001 |
VKC268F/S |
| Brown |
RAL 8017 |
VKC268F/S |
| Terracotta |
RAL 2001 |
VKC268F/S |
| Black |
N/A |
VKC268F/S |
Colour Ordering Note
All five colours share the same base SKU (VKC268F/S) on the manufacturer's own site, with colour selected at point of order. This is the flyscreen version of the grille — the equivalent product without a flyscreen is listed separately as VKC268. Not all Verplas products are available across the full colour range; the five finishes listed here are confirmed available for this specific grille, including Black, which has no RAL equivalent code.
Frequently Asked Questions
What ducting does this grille fit?
It fits 125mm round ducting — rigid pipe, telescopic pipe, or flexible hose — via its rear 125mm male spigot, designed for internal duct diameters of 125mm ±0.4mm.
Which way up should the grille be installed?
The louvre blades should point downwards. This orientation gives the best resistance to wind-driven rain entering the duct.
Does the flyscreen reduce the free area compared to the plain grille?
The published minimum free area of 6,123mm² is the standard figure for the 125mm Verplas louvred grille and is confirmed across independent distributor sources.
Can the flyscreen be cleaned or replaced?
Yes. The front louvre panel separates from the rear spigot plate, giving access to clear the mesh of lint and debris or fit a replacement screen.
What temperature range is this grille rated for?
It's rated for continuous external use between -15°C and +60°C, suitable for exposure across the full range of UK outdoor conditions.
Which colours are available for the VKC268F/S?
White (RAL 9003), Beige (RAL 1001), Brown (RAL 8017), Terracotta (RAL 2001), and Black. Not all Verplas grilles are offered across the full colour range, but this particular model is confirmed in all five.
