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330mm Brass Trim Ring for Bulkhead Fittings - Polycarbonate

£499
The RRP is the manufacturer's recommended retail price of the item.
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Description

The Knightsbridge 330mm brass trim ring is a polycarbonate accessory designed to fit over compatible circular bulkhead fittings, adding a brass-finish outer rim with a 60° angled projection. The ring clips or screws onto the bulkhead housing, extending the visible diameter from the fitting's base to 330mm and creating a finished edge that hides rough masonry or plaster cuts around the mounting point.

Designed for both indoor and outdoor bulkhead installations where a brass accent is needed, the trim ring suits entrance porches, garden walls, commercial facades, and period property restorations where a metallic finish complements brickwork or render. The polycarbonate construction resists UV degradation, impact and corrosion better than thin stamped metal alternatives, maintaining the brass finish appearance through weather exposure without tarnishing or rusting.

The 60° projection angle means the ring slopes outward from the bulkhead face, shedding rainwater away from the fitting and reducing water pooling on the horizontal surface. This projection also creates a small visual shadow line that separates the fitting from the wall plane. The 330mm outer diameter suits standard 200-280mm diameter bulkhead bodies, with the exact compatibility depending on the specific bulkhead model — check the bulkhead's mounting flange diameter before ordering.

Specification
Diameter 330mm
Projection 60°
Construction Polycarbonate
Finish Brass
Downloads

Product Specification Sheet

Frequently Asked

Which bulkhead fittings does this fit?

The 330mm trim ring is designed for Knightsbridge circular bulkhead fittings with mounting flanges up to approximately 280mm diameter. Check the specification sheet or the bulkhead's product page to confirm compatibility before ordering.

Is the brass finish real metal?

No. The trim ring is moulded polycarbonate with a brass-effect metallic finish applied. This gives the appearance of brass without the weight, cost or corrosion issues of solid brass, while maintaining UV and impact resistance for outdoor use.

Can it be used outdoors?

Yes. The polycarbonate construction is UV-stabilised and weather-resistant. The 60° projection angle helps shed rainwater away from the bulkhead face, reducing moisture pooling on the horizontal surface.

How is it fitted?

The trim ring typically clips or screws onto the outer edge of the bulkhead housing after the bulkhead itself is mounted to the wall. Exact fitting method depends on the specific bulkhead model — refer to the bulkhead's installation instructions.

Shipping & Returns

Free worldwide delivery

Free worldwide delivery on all orders over £99. International orders for third-party brand products may be subject to an additional courier surcharge based on volumetric weight, particularly on larger lighting fixtures — if a surcharge applies, our team will email you with the amount before dispatch and you can proceed or cancel for a full refund. See full delivery terms.

Returns

30-day returns window from delivery. As all our products are electrical or lighting goods, returned items must be inspected and recertified by a qualified electrician before resale — the cost of this inspection (25–40% of the item value) is deducted from your refund. Customers pay return shipping. Made-to-order, special-order and clearance items cannot be returned. See full returns policy.

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    Description

    The Knightsbridge 330mm brass trim ring is a polycarbonate accessory designed to fit over compatible circular bulkhead fittings, adding a brass-finish outer rim with a 60° angled projection. The ring clips or screws onto the bulkhead housing, extending the visible diameter from the fitting's base to 330mm and creating a finished edge that hides rough masonry or plaster cuts around the mounting point.

    Designed for both indoor and outdoor bulkhead installations where a brass accent is needed, the trim ring suits entrance porches, garden walls, commercial facades, and period property restorations where a metallic finish complements brickwork or render. The polycarbonate construction resists UV degradation, impact and corrosion better than thin stamped metal alternatives, maintaining the brass finish appearance through weather exposure without tarnishing or rusting.

    The 60° projection angle means the ring slopes outward from the bulkhead face, shedding rainwater away from the fitting and reducing water pooling on the horizontal surface. This projection also creates a small visual shadow line that separates the fitting from the wall plane. The 330mm outer diameter suits standard 200-280mm diameter bulkhead bodies, with the exact compatibility depending on the specific bulkhead model — check the bulkhead's mounting flange diameter before ordering.

    Specification
    Diameter 330mm
    Projection 60°
    Construction Polycarbonate
    Finish Brass
    Downloads

    Product Specification Sheet

    Frequently Asked

    Which bulkhead fittings does this fit?

    The 330mm trim ring is designed for Knightsbridge circular bulkhead fittings with mounting flanges up to approximately 280mm diameter. Check the specification sheet or the bulkhead's product page to confirm compatibility before ordering.

    Is the brass finish real metal?

    No. The trim ring is moulded polycarbonate with a brass-effect metallic finish applied. This gives the appearance of brass without the weight, cost or corrosion issues of solid brass, while maintaining UV and impact resistance for outdoor use.

    Can it be used outdoors?

    Yes. The polycarbonate construction is UV-stabilised and weather-resistant. The 60° projection angle helps shed rainwater away from the bulkhead face, reducing moisture pooling on the horizontal surface.

    How is it fitted?

    The trim ring typically clips or screws onto the outer edge of the bulkhead housing after the bulkhead itself is mounted to the wall. Exact fitting method depends on the specific bulkhead model — refer to the bulkhead's installation instructions.

    Shipping & Returns

    Free worldwide delivery

    Free worldwide delivery on all orders over £99. International orders for third-party brand products may be subject to an additional courier surcharge based on volumetric weight, particularly on larger lighting fixtures — if a surcharge applies, our team will email you with the amount before dispatch and you can proceed or cancel for a full refund. See full delivery terms.

    Returns

    30-day returns window from delivery. As all our products are electrical or lighting goods, returned items must be inspected and recertified by a qualified electrician before resale — the cost of this inspection (25–40% of the item value) is deducted from your refund. Customers pay return shipping. Made-to-order, special-order and clearance items cannot be returned. See full returns policy.