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City Water Systems
Well Water Systems
Need help choosing a water system?
Call 1-800-803-4551Need help choosing a water system?
Call 1-800-803-4551Need help choosing?
Call 1-800-803-4551
HEPA 14 Air Purifier
AH-14 and AH-14 Pro
AH-14 Pro Bundle
3+ years of cartridges
HEPA 14 · UV · Carbon
Cleaner air without the hassle.
HEPA 14 captures dust, pollen, smoke, and allergens. Activated carbon reduces odors.
AH-14 $199.95 · AH-14 Pro $224.00
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On select replacement cartridges, delivered on your schedule. Modify or cancel anytime.
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Whole house water systems
Not sure which whole house system?
Get a custom plan in 30 minutes.
Need help choosing?
Call 1-800-803-4551Need help choosing a water system?
Call 1-800-803-4551Protect your plumbing and keep your RKIN system performing as designed by replacing filters on schedule. Replacement cartridges and media for RKIN whole-house systems. Check each product page for city or well water fit. Choose the right replacements and stay on schedule, so your system keeps performing as designed.
Clean, consistent water at every tap in your home, from showers and sinks to laundry and dishwashers.
Reduced chlorine taste and odor, plus clearer water that looks, smells, and feels better.
Added protection for your plumbing, water heater, and appliances by catching sediment and, with anti-scale cartridges, helping reduce scale.
Predictable maintenance with cartridges and media sized for strong flow and pressure when replaced on schedule.
Parts made to fit RKIN systems, sized to match your equipment’s flow and capacity.
Sediment pre-filters help keep sand, silt, rust, and dirt from reaching your pipes or main filter media.
Carbon block cartridges and carbon media reduce chlorine, chloramines, and many chemical tastes and odors, improving water taste.
The OP1L cartridge is certified for lead, cysts, PFOA, and PFOS (see the product page).
Cartridges and media are sized to match your system’s flow rate and capacity.
Matched components are sized for your RKIN whole-house system, ensuring everything works together as a single, efficient unit.
Replacement cartridges and media are made for RKIN whole-house systems. Many suit both city and well water, and some are tuned for city water, so check each product page.
Select cartridges carry third-party certifications. See each product page for what applies.
Clear replacement guides make maintenance straightforward, even for first-time homeowners.
Technical support is available to help you pick the right replacements and walk you through the process.
Focus on long-term value: fewer surprises and better protection.
Homeowners dealing with chlorine taste and odor, sediment, staining, hardness, or concerns about PFAS and other contaminants.
City water homes wanting cleaner, better-tasting water at every tap and protection for plumbing and fixtures.
Well water homes replacing filters or media on a system built for iron, sulfur, and sediment. Contact RKIN support to confirm the right parts.
Families who care about health, home protection, and the long-term cost of their water treatment investment.
RKIN whole-house system owners who want parts sized and matched to their system.
Identify Your System and Water Issues
Match Your System to the Correct Replacements
Decide on the Installation Approach
Will replacing these filters make my water safe to drink from any tap?
These replacements keep your RKIN whole-house system working as designed, improving taste and odor and reducing chlorine (see each product page for other reductions). For the highest level of drinking water purity, especially for lead, PFAS, or dissolved solids, we still recommend pairing your whole-house system with an under-sink or countertop reverse osmosis or dedicated drinking water filter.
Do I need a softener as well as these filters?
Sediment and carbon filters handle particles, chlorine, and many chemical tastes and odors. A water softener treats hardness minerals that cause scale and spotting. If you have hard water and want to protect appliances and reduce scale on fixtures, you will likely want a softener in addition to whole-house filtration.
Will new cartridges or media reduce my water pressure?
When you use the correct RKIN replacements and change them on schedule, your system is designed to maintain strong flow for typical household use. A noticeable drop in pressure can indicate the filter is overdue for replacement, or there is an upstream issue.
Can I install these replacement cartridges and media myself?
Most whole-house sediment and carbon cartridge changes are typically straightforward DIY jobs with basic tools. Tank media changes are more complex because the tank is heavy when filled and may require additional steps. Many handy homeowners do it themselves, but hiring a plumber is also a good option if you prefer.
How often should I replace filters and media?
It depends on your water quality, usage, and system model. As a general guide, sediment pre-filters are often replaced every 6–12 months, while carbon media in large tanks can last many years when sized correctly. Always follow the replacement schedule on each product page and adjust if you notice changes in taste, odor, or pressure.
Do these replacements work with both city and well water?
Yes, many RKIN cartridges and media are suitable for both city and well water, but some are tuned specifically for municipal water. Check the product description for city vs. well water notes. If you have well water with high iron, sulfur, or unusual contaminants, contact support before choosing replacements.
Can I use generic filters instead of RKIN replacements?
Filters must match your system’s size and flow specifications. RKIN cartridges are sized for RKIN housings. For best results and to protect your system, we recommend using RKIN-provided cartridges and media.
What if I’m not sure which replacement I need?
Have your system model number and a photo of your current filter or tank label ready, then contact RKIN support. A specialist can confirm the correct cartridge or media kit and advise on timing and installation steps, so you order once and install with confidence.
Get a custom plan in 30 minutes. Talk to an RKIN water specialist—zero pressure. We’ll assess your water, compare options, and give you a clear recommendation with pricing and install fit.
Prefer to talk now? Call 1‑800‑803‑4551 (Mon–Fri, 9 AM–5 PM ET)
