Replacement parts for conservatory

[geostra]

Hello, I've just moved into a new home and have slowly been renovating room by room. This weekend I have been repainting, sealing and generally cleaning our conservatory. Unfortunately, some of the components of the conservatory have yellowed over time. I have been able to replace most, however, I am having trouble finding a suitable replacement for the part shown...

Please would someone be able to tell me the name of this component, or recommend a supplier of a suitable 'non-yellowed' replacement?
Many thanks

 

[KenGMac]

How about ??

Immerse the yellowed component in a cleaning solution say, bleach, or Cillit Bang black mould and mildew remover?

Cheap and worth a pop?

Ken.

 

[Camallison]

Unless that yellowing is from something like nicotine, it is irreversible. The cause is quite often the pigment in the plastic being affected by UV. If you don't succeed with a chemical treatment, why not paint each piece identical to that one (that is, if there's more than one) with acrylic paint to create an effect. In a similar situation, I painted the yellowed pieces gold.

ColinA