Premium Brass Compression Reducing Sets (15mm to 42mm)

Ensure a seamless, leak-free transition across your plumbing pipework with our Premium Brass Compression Reducing Sets. Engineered for reliability, these essential plumbing fittings allow you to step down pipe diameters quickly and safely without the need for heat, solder, or specialized tools.

Whether you are working on domestic hot and cold water systems, central heating installations, or commercial plumbing repairs, these high-quality solid brass reducers deliver a watertight seal every time. We carry a comprehensive range of standard multi-piece reducers and streamlined 1-Piece (1 Pt) sets to suit any job.

Plumbing Benefits:

• Time-Saving Installation: The simple compression design creates an instant, secure connection using just a standard spanner or wrench.

• Solder-Free Safety: Eliminates the fire risks and mess associated with blowtorches, flux, and solder—perfect for working in confined spaces.

• Easily Demountable: Fittings can be safely loosened, adjusted, or removed entirely during future system maintenance or upgrades.

• Maximum Versatility: Fully compatible with standard copper tubes and plastic plumbing pipes (when used with appropriate pipe inserts).

Key Features:

• Material: Heavy-duty solid brass construction for superior corrosion resistance and long-term durability.

• Application: Ideal for pressurized hot water, cold water, and central heating systems.

• Precision Engineering: Machined threads and high-quality compression rings (olives) guarantee a tight, reliable grip.

• Category: Compression Fittings / Reducing Sets.

Available Sizes (Select via Dropdown):

Standard Reducing Sets

• 15mm x 8mm 

• 15mm x 10mm 

• 15mm x 12mm 

• 22mm x 15mm 

• 28mm x 15mm

• 28mm x 22mm 

• 35mm x 15mm 

• 35mm x 22mm 

• 35mm x 28mm 

• 42mm x 22mm 

• 42mm x 28mm 

• 42mm x 35mm 

1-Piece (1 Pt) Reducing Sets

• 15mm x 8mm (1 Pt) 

• 15mm x 10mm (1 Pt) 

• 22mm x 15mm (1 Pt)