Trainco Washer 22Mm 99408 - Need 2 For Exchanger

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The Trainco 22mm Washer (Part No. 99408) is a genuine fibre sealing washer used on Trainco and compatible oil boiler heat exchangers. This washer provides a reliable, heat-resistant seal on 22mm pipe joints, preventing leaks around the exchanger connections.

Two washers are required when servicing or replacing the heat exchanger on models using Trainco part 99408, ensuring a proper seal on both sides of the connection.

Key Features

• Genuine Trainco 22mm sealing washer

• OEM part number: 99408

• Heat-resistant fibre construction

• Provides a secure, leak-proof seal on exchanger fittings

• Used on 22mm compression/union joints

• Essential when refitting or servicing heat exchangers

• Supplied individually (2 required per exchanger)

Compatibility

• Fits heat exchangers requiring Trainco 99408

• Suitable for 22mm boiler connections, including:

  • Trainco heat exchangers

  • Replacement exchanger assemblies using 22mm unions

When to Replace

• When removing or reinstalling a heat exchanger

• Any time a 22mm union joint is disturbed

• Signs of weeping or leakage from exchanger connections

• During routine boiler servicing to maintain seal integrity

Technical Specifications

• Manufacturer: Trainco

• Part Number: 99408

• Size: 22mm

• Material: Heat-resistant fibre washer

• Application: Heat exchanger sealing washers (2 required)