25mm (One inch) Black steel fittings

25mm (One inch) black steel fittings. These are for 27mm internal 34mm outside diameter plumbing pipe fittings and plumbing pipe lengths in Black Steel finish threaded as 1″ BSTP. Finish with diluted Raw Linseed Oil to make rubbed iron furniture and decorator components.

This is a pipe and fitting that is now referred to by a metric size name 25mm

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