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			The inline on the older 2 strokes had barb fittings that clamped in place with wire clamps or small zip ties.  The four strokes have a different barb that clips into a special fitting.
 I think
 
 Should be able to find plenty of the older ones. Just make sure the one u get has barbs, not the rings with the long nipples.
 
 As far as the filtering element, i don t think there is any difference.
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