Product Description

125mm VIT-Smooth Standard Collar Ring Trim – 67-125-090

The 125mm VIT-Smooth Standard Collar Ring Trim creates a neat finish around a compatible 125mm flue pipe where it enters a non-combustible wall or passes through a register plate.

This 90° rosette collar has four internal springs that grip the outside of the pipe. Therefore, it can remain in place without visible screws or fixings.

The smooth matt-black enamel finish complements compatible VIT-Smooth pipework and many traditional or modern stoves. However, this collar is a decorative trim only. It does not support, seal or insulate the flue pipe.

125mm Standard Collar Ring Features

• Decorative 90° flue-pipe rosette
• Manufacturer part number: 67-125-090
• Suitable for compatible 125mm / 5-inch flue pipe
• Designed for a flue entering a surface at 90°
• Covers untidy gaps around the pipe opening
• Suitable for a non-combustible wall or register plate
• Four internal retaining springs
• No visible screws normally required
• Quick spring-fit installation
• Zero-carbon steel construction
• Matt-black vitreous enamel finish
• Matches compatible VIT-Smooth components
• Manufactured to complement T600 connecting flue systems
• Lightweight decorative accessory

Technical Specification

• Brand: VIT-Smooth
• Manufacturer: MI-Flues
• Part number: 67-125-090
• Product type: Spring-fit rosette collar
• Nominal pipe size: 125mm / 5 inches
• Installation angle: 90°
• Fixing method: Four internal retaining springs
• Material: Zero-carbon steel
• Finish: Matt-black vitreous enamel
• Installation surface: Non-combustible wall or register plate
• Associated system standard: EN 1856-2
• Associated system classification: T600 N1 Vm L80120 G375
• Approximate weight: 100g
• GTIN / EAN: 5060795860260

What Is a Flue-Pipe Collar Ring?

A collar ring, also known as a rosette, covers the gap between a flue pipe and the surface around it. As a result, it gives the finished installation a cleaner and more professional appearance.

This model suits a pipe that enters a flat surface at 90°. For example, an installer may use it where a 125mm pipe meets a non-combustible register plate.

However, the collar does not form part of the gas-tight flue joint. It also does not provide fire protection, structural support or insulation.

Why Choose the VIT-Smooth Collar?

The VIT-Smooth collar uses a deep matt-black finish that matches compatible enamelled flue components. Therefore, it creates a more consistent appearance around the stove and visible flue pipe.

In addition, four internal springs grip the pipe and hold the collar against the surface. This simple design avoids visible screws and allows straightforward fitting.

The vitreous enamel coating also provides a durable and easy-to-clean surface. However, take care during fitting because impacts or rough handling may chip the enamel.

Where Can You Use This Collar?

• Around compatible 125mm VIT-Smooth pipe
• Against a suitable non-combustible register plate
• Against a suitable non-combustible wall surface
• Where the flue meets the surface at 90°
• On suitable gas, oil or solid-fuel flue installations
• As a decorative finish around a completed pipe opening

Important Safety Information

This collar is a decorative cover only. It does not allow single-wall stove pipe to pass through a combustible wall, ceiling, roof or concealed void.

The wall, register plate and surrounding construction must use suitable non-combustible materials. In addition, the flue installation must maintain all required distances from combustible materials.

The associated VIT-Smooth connecting system carries the classification T600 N1 Vm L80120 G375. However, the collar itself does not replace any required fire stop, wall sleeve, support, adaptor or insulated chimney component.

Does the Collar Seal the Flue Opening?

No. The collar hides the visible gap around the pipe, but it does not create a gas-tight or fire-resistant seal. Therefore, the installer must complete any required sealing separately with approved materials and methods.

Do not rely on the four springs to support the pipe. Instead, use the correct flue brackets, supports and system components throughout the installation.

How Is the Collar Fitted?

The installer slides the one-piece collar over the pipe before completing the surrounding flue connection. The four internal springs then grip the pipe and hold the rosette against the finished surface.

Because this is a one-piece collar, it may not fit over a completed flue system if larger fittings block the pipe ends. In that situation, a two-piece split trim ring may offer a better choice.

Wear suitable gloves during installation because the concealed edges and springs may be sharp. Also, avoid forcing or twisting the collar because this could damage its enamel finish.

Standard Collar or Split Trim Ring?

This standard collar has a one-piece spring-fit design. Therefore, it works best when the installer can slide it over the pipe during the original installation.

A split trim ring comes in two sections and fits around pipework that is already in place. As a result, the split version may suit repair, replacement or retrofit work better.

Before ordering, check the pipe diameter, installation angle and access around the completed flue.

Why Buy from SNH Tradecentre?

• Competitive prices: We aim to offer excellent value across our stove and flue range.
• Collection available: IN STOCK – Collect from our Birchington trade counter.
• Delivery options: We offer convenient delivery throughout eligible UK areas.
• Helpful advice: Our team can help you compare standard, split and angled trim rings.
• Clear product information: We provide useful fitting and compatibility details.
• Trade and public welcome: We supply installers, businesses, landlords and homeowners.
• Independent merchant: SNH Tradecentre is based in Birchington, Kent.

Need Help Choosing a Flue Trim?

Not sure whether you need a standard or split collar? Call SNH Tradecentre on 01843 842727. Please have the pipe diameter, installation angle and details of the surrounding surface available.

Read Reviews from SNH Tradecentre Customers

See what customers say about our products, service and advice on the SNH Tradecentre Google Reviews page.

Read SNH Tradecentre customer reviews on Google

Installation Requirements

A competent installer should design and fit the complete flue system. For solid-fuel appliances, use a HETAS-registered installer or notify Local Authority Building Control where required.

The installer must follow the appliance instructions, flue manufacturer’s guidance and current Building Regulations. They must also check clearances, ventilation, flue supports, termination and access for cleaning.

A carbon monoxide alarm must be installed where current regulations require one. However, an alarm does not replace correct installation, maintenance or chimney sweeping.

Frequently Asked Questions

What size pipe does this collar fit?

The collar is designed for compatible 125mm pipe, which is also commonly described as 5-inch flue pipe.

What does the collar ring do?

It covers the visible gap where the pipe enters a suitable non-combustible wall or register plate. Therefore, it provides a cleaner decorative finish.

How does the collar stay in place?

Four springs on the inside of the collar grip the outside of the pipe. As a result, visible screws are not normally required.

Can I fit it after installing the flue pipe?

Only if you can slide the one-piece collar over an accessible pipe end. If the flue is already complete, a split trim ring may be easier to install.

Can I use it on an angled flue pipe?

This model suits a 90° meeting with a flat surface. For a pipe meeting the surface at 45°, choose a compatible angled trim ring.

Does the collar seal the flue?

No. It is a decorative trim and does not create a gas-tight or fire-resistant seal. The installer must complete any required sealing separately.

Does the collar support the flue pipe?

No. The retaining springs only hold the trim in place. The flue pipe requires suitable brackets and supports from the approved system.

Can it cover an opening in a combustible wall?

No. This collar is intended for a suitable non-combustible wall or register plate. It does not make a combustible penetration safe.

Can single-wall stove pipe pass through a wall or ceiling?

Single-wall stove pipe must not pass through combustible walls, ceilings, roofs or concealed areas. The installer must change to a suitable approved chimney system where required.

Order the 125mm Standard Collar Ring

Choose the 125mm VIT-Smooth Standard Collar Ring Trim 67-125-090 to create a neat matt-black finish around compatible flue pipe entering a non-combustible surface at 90°.

Before ordering, confirm the pipe diameter, installation angle and whether you can slide a one-piece collar over the pipe.

Manufacturers may update specifications and installation guidance. Therefore, check the latest instructions and confirm suitability with a competent installer before ordering.