Pentair
Pentair ROM-230T Replacement Membrane for RO-3000-RO-3500
$175.00
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Compatible with the follow: ROM-230T, ROM-230TN, 155854, 155854-01, 155855, 155855-19, 155855-43, 155786-00, TFC 22-30 GPD
Alternate part numbers : 155854, 155855-19, 155855-43