
I have only red from the original attachments, so I will compare it with it.
The blue nozzle is a little longer on the larger side, ~ 49 cm, the red one has a length of ~ 41 cm, on the Vileda spray Max the edges of the blue are are does not move in the sides due to the fact that the central recess has a size close to the original (slightly larger).
The blue nozzle is slightly less neat than the original red, but it's more of a visual component of the question.
The upper surface is very similar to the original one. Inside the blue Velcro nozzle is longer, but narrow, unlike the original, also, there is no tag with washing requirements. The loop is made of fabric, not rubber.
In the rest, there are no differences between the nozzles, mostly, all the differences found do not concern reliability, but the visual execution of the goods, and the working surfaces are identical to the original
Definitely recommend to buy!