Comparison : |
Item # AK2540FM, AK Series Low Energy Brackish Water RO Elements Item # AK2540TM, AK Series Low Energy Brackish Water RO Elements Item # AK4040C, AK Series Low Energy Brackish Water RO Elements Item # AK4040CM, AK Series Low Energy Brackish Water RO Elements Item # AK4040FM, AK Series Low Energy Brackish Water RO Elements
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