Countertop
Zero-install systems for renters or simple setup.
Water system planner
Match the purifier to the sink, bottle, or whole routine.
RKIN products are organized by countertop purification, undersink reverse osmosis, replacement filters, and portable hydration context.
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Undersink
Reverse-osmosis paths that require fit checks.
Replacement
Filter and screen parts matched to the right model.
U1-W RKIN 2-in-1 Sediment and Carbon Pre-Filter QT Series
Available for pre-order Estimated shipping in late June or early July RKIN 2 in 1…
$40.95View pick
OnliPure Edition Ion-Exchange Post Filter
Polishing OnliPure Post Filter reduces any leftover contaminants after the Reverse Osmosis process to zero TDS. Measure and confirm from your.
$40.95View pick
U1-W RKIN AlcaPure Alkaline Post Filter QT Series
RKIN AlcaPure Alkaline Post Filter QT Series. MPN - RC-QT-CF, Replace every 6-12 months or as needed. Service life: 792 GAL / 3000 L Maximum.
$40.95View pick
Replacement filter cartridge for RKIN-AH-14 air purifier
RKIN-AH-14 air purifier replacement filter cartridge. Recommended replacement every 1500-2000 hours or sooner, depending on local air quality.
$51.95View pick
High Output UV Light System Replacement Quartz Sleeve
Replacement quartz sleeve for Viqua VH200 and VH410 high output UV system. Please refer to the <a…
$62.95View pick
RKIN Replacement Reverse Osmosis Membrane 75 GPD
Replacement filter element for RKIN Zero Installation Purifier or RKIN Flash Undersink Water Filter System. 75 Gallon Per Day Reverse Osmosis.
$66.95View pick
RKIN CBS Carbon Block CTO Replacement Cartridge
RKIN CBS Carbon Replacement Cartridge for chlorine and disinfection by-products reduction. Chlorine and Chloramine reduction 5 micron nominal.
$75.95View pick
AlcaPure Edition Zero Installation Purifier Replacement Filters Kit
AlcaPure Edition Replacement filter set for Zero Installation Purifier Countertop Reverse Osmosis System: FIRST STAGE FILTRATION 5-micron.
$71.95View pick
Replacement filter cartridge for RKIN-AH-14-PRO air purifier
RKIN-AH-14-PRO air purifier replacement filter cartridge . Recommended replacement every 1500-2000 hours or sooner, depending on local air.
$75.95View pick
Buying decision module
Installation type before filter bundle.
Water products need model fit, replacement schedule, and installation context before checkout.
Start with countertop systems.
Compare undersink installation needs.
Match replacement part to exact unit.
Final check
Open RKIN after choosing the install path.
The advertiser controls final specs, filter life, availability, and checkout.
Independent guide. Affiliate publisher.
Fit check. Confirm model compatibility.
Water context. Review specs for your use case.
Affiliate disclosure: this page is an independent publisher guide. We may earn a commission when shoppers purchase through affiliate links. Product availability, price, shipping, returns, and checkout terms are controlled by the advertiser.