twin air filter???

[WB450r]

i recently jus bought and twin air filter and have cleaned the filter it self twice..and it is really small compared to the stock air filter that i used before..i am still using the same stock cage and it is really a job to put the filter and the cage together..
the filter didnt come with a seperate cage..

is there an aftermarket air filter cage that i can buy to fix this problem??

thanks