1 1/2" Flanged Brass Backnut (Known as backnut/tap backnut/Plumbing Nuts/Brass Back nut/Back nut Also Available in 1/2 Inch, 3/4 Inch, 1 Inch, 1 1/4 Inch, 2 Inch BSP)

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  • IMPORTANT SIZING NOTE - Most plumbing products are measured using BSP thread dimensions which measure 1 4 inch larger than that stated, therefore this 1 1 2 Inch BSP thread actually measures 1 3 4 Inch in diameter. If your thread measures 1 1 2 Inch in diameter then you require the 1 1 4 Inch version of this product
  • Threaded Brass Fittings
  • Outer diameter - 55mm, thickness - 10mm

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