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RO REPLACEMENT
FILTER PACKS

Annual replacement packs for all Thunder© under-sink and whole-house RO systems. Replace all stages at once for guaranteed peak performance.

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Filter Pack
Thunder© 1000C Annual Replacement Filter Pack
Complete annual replacement pack for Thunder© 1000C 12-stage systems. Includes all pre-filter and post-filter cartridges. Maintains peak system performance.
Thunder© 1000CAnnual PackAll StagesEasy Replace
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Filter Pack
Thunder© 3000C Annual Replacement Filter Pack
Annual replacement pack for Thunder© 3000C 14-stage systems including the coconut-shell GAC post-filter cartridge.
Thunder© 3000CAnnual Pack14 StagesCoconut GAC
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Filter Pack
Thunder© 4000MP Annual Replacement Filter Pack
Complete annual pack for Thunder© 4000MP 17-stage systems. All pre-filters, post-filters, and the UF membrane polish stage.
Thunder© 4000MPAnnual Pack17 StagesUF Stage
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Filter Pack
Whole House RO Filter Pack — 200–300 GPD
Annual replacement pack for 200–300 GPD whole-house RO systems. Sediment pre-filter, carbon pre-filter, and post-carbon polish.
200–300 GPDWhole HouseAnnual Pack3 Cartridges
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Filter Pack
Whole House RO Filter Pack — 500–1,000 GPD
Annual replacement pack for 500–1,000 GPD whole-house RO systems. Higher-capacity cartridges for greater daily water volume.
500–1,000 GPDWhole HouseAnnual PackHigh Capacity
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Filter Pack
Whole House RO Filter Pack — 1,500–5,000 GPD
Annual replacement pack for large-scale whole-house and light commercial RO systems. Multiple cartridge set for high daily volume.
1,500–5,000 GPDCommercial ScaleAnnual PackMulti-Cartridge
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