Inline Post Carbon Water Filter Replacement - V21RFPC10 | 10 Inch Compatible with All Traditional RO Systems
Enhance the taste of your water with the VIVA21 V21RFPC10 post carbon block replacement filter. This 1/4" quick connect coconut shell activated carbon filter serves as the final polishing stage. Specifically to refine the taste and clarity of your water by removing any lingering odors or flavors.
Compatible with all traditional under sink reverse osmosis systems. Designed for high performance, consistent clean and healthy drinking water.
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Dimension
Dimension
Fits into all standard under sink reverse osmosis systems.
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Highly Effective Coconut Shell Activated Carbon
Professional-Grade Polishing for Pristine Drinking Water
Enhance your home water quality with the Filter United V21RFPC10 Inline Post Carbon Filter. As the final stage in your Reverse Osmosis (RO) system, this polishing filter uses premium coconut shell activated carbon to eliminate lingering tastes, odors, and impurities. Designed with a 1/4" Quick Connect fitting, it offers a tool-free installation that is compatible with all standard 10-inch under-sink RO systems and ice makers. Experience crisp, bottled-quality water directly from your tap.
Compatible with all standard 10" under-sink RO systems. Engineered to meet strict NSF standards for peace of mind.
Performance
Eliminate lingering odors and flavors
Certified
Used in our RO system certified by WQA Gold Seal to meet the strict NSF 58 and NSF 372 standards.
Experience
Design and built in the USA. Aimed to last 12 months to protect your safe drinking water.
Care
Strive to deliver happiness to every customer. Enjoy peace of mind with lifetime support.
FAQs
How long does shipping take?
How long does shipping take?
Shipping typically takes 1 business day. Then the rest is taken care by the shipping carrier of your choice.
Depending on the destination and customs processing times. You will receive a tracking number once your order has shipped so you can monitor its progress.
Does my filters come in any packaging?
Does my filters come in any packaging?
Yes, all our filters ship with security wrapped. Remember to remove them before putting them into your reverse osmosis system.
How often should I replace my post carbon filter?
How often should I replace my post carbon filter?
We recommend replacing your carbon block water filter every 18 months based on regular source water quality.
Every zip code may vary, filters should be replaced if noticed a change in taste.
What payment methods do you accept?
What payment methods do you accept?
We accept a variety of payment methods to make your shopping experience convenient. These include credit cards (Visa, Mastercard, American Express), PayPal, and, in some regions, alternative payment methods such as Apple Pay or Google Pay. Rest assured, your payment information is secure and protected during the checkout process.

