Automatic Diesel Fuel Nozzle Cover

I've been frustrated with GPI nozzle covers for years because they seem to degrade significantly when exposed to direct sunlight. After 2 years I find it acceptable to spend $10 to replace my old nozzle covers (wish I didn't have to do this, but at least the exact fit replacement is NOW available - previously you needed to buy a new nozzle.) Like others have said I wish GPI would fix the formulation of these covers so they were more weather resistant, but in the meantime, this is an acceptable option

Automatic Diesel Nozzle Cover