Knight SRO-450

Official Knight SRO-450 reverse osmosis system logo by United Water Softeners featuring a bold blue knight helmet with crossed swords and the model name in striking blue lettering.
Knight SRO-450 premium reverse osmosis drinking water system by United Water Softeners – side view showing the sediment pre-filter, dual carbon filters, high-capacity storage tank, and modern black design.

Keep your drinking water clean and safe with the KNIGHT SRO-450 Series Reverse Osmosis System. It reduces the levels of lead, nitrates, cysts (cryptosporidium, giardia), arsenic, sodium and other contaminants commonly found in unfiltered tap water. The easy to install system offers quality water at your fingertips 24 hours a day, 7 days a week, 365 days per year. KNIGHT SRO-450 cartridges are the highest quality to ensure clean, purified water. Your family, friends and pets will love the taste and enjoy all the benefits of healthy water.

Knight SRO-450 Components

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Knight SRO-450 Reverse Osmosis (RO) Drinking Water System by United Water Softeners – Premium 3-Stage Sediment & Dual Carbon RO Filtration in Houston

What the SRO-450 Reduces

The KNIGHT SRO-450 uses reverse osmosis — a semi-permeable membrane that water is forced through under pressure — to reduce lead, nitrates, cysts such as cryptosporidium and giardia, arsenic, sodium, and other dissolved contaminants commonly found in unfiltered tap water. These are exactly the contaminants that a whole-home softener does not address, which is why an RO system belongs at the kitchen sink even in a home with a softener: the softener treats the water that goes on you, the RO treats the water that goes in you.

Everyday Difference

The change people mention first is taste — coffee, ice, and drinking water off the dedicated faucet. The change that matters over time is what you stop buying: cases of bottled water and pitcher filters. The system delivers purified water on demand, 24 hours a day, from its own tap beside your kitchen faucet.

Cartridges and Maintenance

KNIGHT SRO-450 cartridges are high-quality staged filters, and like every RO system, the filters are the maintenance. Pre-filters protect the membrane; change them on schedule and the membrane lasts years. Our annual maintenance plans include RO filter changes and servicing, so the system is looked after without you tracking dates.

SRO-450 or PureGuard?

We install two under-sink RO systems. The PureGuard PGRO-4 is the system included in our SENTINEL ELITE package; the SRO-450 is a strong standalone choice. Both do the core job well — during your in-home visit we will recommend whichever fits your water, your sink cabinet, and your budget, and we service both for the life of the system.

We install and service the SRO-450 across Houston, Cypress, Katy, Tomball, Conroe, and the surrounding areas — and we also repair RO systems, including units we did not install.

Call United Water Softeners at 281-240-0261 or request a free in-home water test.

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