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My 05 2980RL had "flair-it" fittings as that was pre-PEX. The fittings were threaded plastic with a single barb that the plastic hose slipped over. Then, there was a plastic nut that tightened down on the line and fitting itself. They worked OK for stuff pre-PEX as if they seeped, all you had to do was tighten the plastic nut a bit more usually.
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