Skimmer Cup Fitment

dMiles

Member
Setting up a RSM 130 that I bought used from my LFS(Fishy Business SC) I decided to do some upgrades beforehand. Ordered the Tunze 9002,inTank media basket, upgraded cup and a few other things. The neck on the upgraded cup is about an 8th of an inch longer the the Tunze cup. Is it supposed to be this way?
 
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