McAlpine S13-ISON 1.25" Blue Compression Ring
McAlpine S13-ISON 32mm Blue Metric Compression Ring – For ASA10 Trap, S28L-ISO Adapter AND other mcalpine traps and fittings
The McAlpine S13-ISON Blue Compression Ring is a 32mm metric sealing ring designed for use in compression waste fittings where European 32mm pipes are involved. This component is commonly fitted to the adjustable leg of the McAlpine ASA10 adjustable basin trap (please see diagram in the images to see where it goes), as well as the McAlpine S28L-ISO adapter, which connects 32mm European metric waste pipes to British 1¼" solvent-weld fittings.
Manufactured from durable elastomer, this blue-coloured ring ensures a tight, reliable seal for metric pipework and helps prevent leaks in mixed-standard plumbing systems — a common scenario when fitting European bath or basin wastes from brands like Geberit, Kaldewei, or Bette in UK systems.
Product Specifications
| Feature | Details |
|---|---|
| Product Code | S13-ISON |
| EAN (Barcode) | 5036484064035 |
| Brand | McAlpine |
| Type | Metric Compression Ring |
| Size | 32mm (Metric) |
| Colour | Blue |
| Material | Flexible elastomer |
| Application | Compression seal for 32mm metric pipe fittings |
| Used In | ASA10 adjustable basin trap, S28L-ISO metric-to-imperial adapter |
| Compatibility | McAlpine 32mm compression fittings |
| Installation | Push-fit into compression nut – no tools required |
Key Features
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Designed for 32mm European metric waste pipe connections.
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Used in ASA10 traps and S28L-ISO adapters to bridge metric and imperial pipework.
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Bright blue ring distinguishes it from standard UK imperial seals.
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Ensures a watertight, durable seal in mixed-system plumbing setups.
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Flexible, chemical-resistant elastomer for long-term reliability.
The McAlpine S13-ISON 32mm Blue Compression Ring is an essential component for achieving leak-free seals in European metric waste installations, especially when integrating with UK-standard fittings.
Buy now from Getplumb – Reading’s trusted plumbing and heating supplier. Fast UK delivery or in-store collection available.