Monument Tap Back Nut Box Spanner 27mm x 32mm

About this tool

The Monument GRIP+ 323F Tap Backnut Box Spanner is a double-ended tool designed for the quick and efficient assembly of tap backnuts on basins. This essential plumbing tool features 27mm and 32mm hex ends, providing versatility for different tap fitting sizes commonly encountered in UK installations. Part of Monument's GRIP+ range, this box spanner offers a practical solution for plumbers working in confined spaces where traditional spanners may not fit. The double-ended design eliminates the need to carry multiple tools, whilst the extended reach allows access to backnuts positioned deep beneath basins and sinks. Ideal for professional plumbers and bathroom installers, this box spanner is particularly suited to basin tap installations and maintenance work. The 27mm end accommodates standard tap backnuts, whilst the 32mm end handles larger fittings up to 1.1/4 inches, making it suitable for a wide range of residential and light commercial applications. Features and Benefits: • Double-ended design with 27mm and 32mm hex sizes for versatile applications • Extended reach provides access in confined spaces beneath basins • Part of the GRIP+ range for reliable performance Specifications: • Tool Type: Box Spanner • Max. Capacity (mm): 32 • Max. Capacity (in): 1.1/4 • Size: 27 and 32mm

Retailer description · Tooled Up · Observed 12 Oct 2026. Check the retailer’s listing for full specifications and contents.