Nickel Plated Heater pipes for DB MkIII with Optional Large Heater in 1958 & STD Heater from late 1958 on, for MkIIIs with later square edged heater box & rectangular heater matrix. (rather than a circular matrix)

Copper tube instead of brass (as its more durable) with Dull Nickel Plating as original,

The copper tube is bent on a 1.5" rad mandrel bender which produces a almost perfect bend with no ripples inside or out & minimum loss of tube dia.

They are finished after bending with a rolled bead and finally plated after being checked for dimensions & fit on a dummy engine

Earlier DB2 to MkIII needs these pipes