im not bothered about the price of the jets they are only about £11 from gardiners, but i want to buy a new superlite xtreme brush with jets so i want to try them on the brush that i already have to make sure i like them before i spend out on the new superlite xtreme brush with jets already fitted
The original question was: How easy are they to fit to your brush? I tried to answer that.
I don't know the brush you refer to. Does it have brass push-fit jets? If it does, you can simply pull out the pencils and push in the fans. That way you can achieve what you want to achieve. The whole point is that they are a straight swap.
So how easy are they to fit? VERY EASY.Otherwise you need to drill larger holes to fit the usual fan jets.
If you don't mind drilling holes in your brush, that's fine. But you do need a decent drill and a vice to make sure the holes go parallel. If they don't, you'll make a mess of the job and the water won't do what you want it to do.
So how easy are they to fit?
If you have a decent workshop and skills --- EASY
If you don't have a decent workshop and skills --- QUITE DIFFICULT