On 29/10/2019 18:08, Mark Carver wrote:
Are they made of brown GRP, or white GRP painted brown ?

And why are they twice the price of white ones ?

TIA

They are brown GRP.

Supply and demand.

Sometimes it works the other way round. Red 2.5m washing machine inlet
hose cheaper than blue.
https://www.diy.com/search?term=inlet+hose

--
Graham.

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