This is to replace the valve block for the Marineland C-220. I have the same problem as Eileen in another 1 star review. The original valve block and its replacement are like distant relatives. It does fit into slots in the lid (although it's not the original cutout shape - see the second two photos), but the locking lever doesn't push all the way in to latch it. The new model's locking lever folds the other way - and yes, it should move that way due to the entry/exit orientation. Therefore, this replacement is totally unusable and must be returned.
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