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Pentair R172009Z Replacement O-Ring for Rainbow Automatic Chemical Feeder Lid. This o-ring should be lubricated and placed onto the lid assembly before tightening the lid onto the chemical feeder. For best results, apply a small amount of pool and spa lubricant to your fingertips and run it around the o-ring.
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🇺🇸 Ship from USA · On Agora since 2026
$6.80