Description
Straight Push-Fit Reducer – 15mm to 10mm
The Tower Straight Push-Fit Reducer is designed to adapt 15mm radiator valves and lockshields for use with 10mm plastic pipe, providing a simple and reliable solution for modern heating installations. Available in Chrome, Anthracite, and Black finishes, it allows installations to remain visually consistent with contemporary radiator valves and pipework.
Featuring a push-fit design, the reducer enables quick and secure installation without the need for specialist tools, making it ideal for both new installations and system upgrades. Manufactured from high-quality brass, it offers long-term durability and dependable performance within domestic central heating systems.
The reducer provides a 15mm male to 10mm female connection, making it compatible with most thermostatic and manual radiator valves and lockshields, including Tower valve ranges. It is suitable for use in both open-vented and sealed central heating systems, as well as indirect hot water systems.
Designed for water-based heating applications, the reducer operates at temperatures up to 120°C at 5 bar and pressures up to 10 bar at 65°C. Once installed, it requires minimal maintenance and supports efficient system operation.
Finish Options and Product Codes
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Chrome: STC1 (supplied in pairs)
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Anthracite: STC1-A (supplied individually)
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Black: STC1-B (supplied individually)
Important Information
This product is designed exclusively for water-based systems. It is suitable for use with corrosion inhibitors, antifreeze, and system cleaners, but must not be used with other substances.
The Tower Straight Push-Fit Reducer 15mm to 10mm offers a practical, durable, and visually coordinated solution for adapting radiator connections while maintaining efficient heating system performance.
Full technical specifications, dimensions, and installation details can be found in the specification tab above.
Key features
- Easy Installation: Push-fit design simplifies setup without tools or expertise.
- Durable Material: Made from high-quality brass for long-lasting performance.
- Versatile Compatibility: Fits most radiator valves and lockshields, including Tower valves.
- Efficient Functionality: Reduces 15mm thermostatic/manual valves to 10mm for optimal system performance.
This STC1, STC1-A & STC1-B Straight Connectors is a practical choice for domestic heating systems where dependable operation, clear control and straightforward installation are important.
- chrome plated finish
- Material: Brass
- Size: 15mm male x 10mm female
- Connection Type: Straight Push-Fit Reducer
- Material: Brass
- Size: 15mm male x 10mm female
- Connection Type: Straight Push-Fit Reducer





























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