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Watts Premier RO 4-Pack Filter Kit for 4 Stage Pure Plus/Zero Plus Reverse Osmosis System, Push Button Water Filter Replacement, Sediment, Carbon Pre- & Post, and Membrane Variants Included

Watts Premier RO 4-Pack Filter Kit for 4 Stage Pure Plus/Zero Plus Reverse Osmosis System, Push Button Water Filter Replacement, Sediment, Carbon Pre- & Post, and Membrane Variants Included

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Regular price $126.80
Regular price Sale price $126.80
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  • 24/7 Customer Support
  • Risk-Free 30-Day Returns
  • Fast & Reliable U.S. Shipping

30-Day Hassle-Free Returns

Not satisfied? Return your order within 30 days for a full refund or exchange — simple and easy.

✔ Easy return process

✔ Fast refunds

✔ No hidden conditions

Fast U.S. Shipping

We ship within the United States only — no international delays.

✔ Processing time: 1–2 business days

✔ Delivery time: 3–7 business days

✔ Real-time tracking available

👉 Track your order anytime from the header via Track Order

About This

  • COMPREHENSIVE FILTER REPLACEMENT KIT: Say goodbye to unpleasant tastes and odors with the Watts Premier RO Pure 4-Pack Filter Kit, a complete set of water filters for your under sink RO Pure (WP531411, WP531407) or Zero/Pure Plus (WP531517, WP531417). The included 3 filters and membrane are tailored for specific filtration purposes, collectively ensuring crystal clear, great-tasting drinking water every time. Please note this kit will not fit the Watts 1/4 Turn Kwik-Change RO System.
  • HIGHLY EFFECTIVE FILTRATION: This kit includes one 5-Micron Sediment Filter (WP105311) for reducing dirt, silt, and rust that affects the taste and appearance of your water; one 5-Micron Activated Carbon Pre-Filter (WP105351) and one Post-Filter (WP105341) for conditioning the water and reducing chlorine taste and odors; one 50 GDP Membrane (WP105331) for reducing TDS and contaminants like arsenic, lead, nitrates, percolate, and copper.
  • SMART DESIGN: Each of these four top-performing 11-inch filters is denoted by a different color for easy identification: red for sediment, yellow for pre-filter, blue for post-filter, and green for membrane. They also feature a push button release that allows for hassle-free replacement without shutting off the water source. Easily change out filters with a quick push of a button - no special tools required!
  • QUALITY CONSTRUCTION: These durable filters are crafted from high-quality materials for maximum filtration. Filter life may vary based upon local water conditions or use patterns, but we recommend replacing sediment and carbon pre-filters every 6 months, the carbon post-filter once a year, and the membrane every 2 to 5 years.
  • THE PREMIER DIFFERENCE: Since our founding in 1989, Premier has been dedicated to the design, development, and marketing of high-quality water filtration systems that exceed industry standards. Following our Watts Water Technologies in 2001, our audience and influence have only expanded, solidifying Watts Premier as a trusted leader in the industry.

Overview

  • Material : Copper
  • Product Dimensions : 10"D x 13"W x 2.5"H
  • Item Weight : 2.75 Pounds
  • External Testing Certification : ANSI
  • Product Benefits : Reduces odor and harmful chemicals in water by up to 99.8%
View full details
Is Hard Water or Contaminated WaterDamaging Your Home?
Signs You May Be Experiencing Problems With Your Tap Water
Protect Your Home Appliances
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Softer Skin & Healthier Hair
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Pure, Better-Tasting Drinking Water
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Prevent Costly Hard Water Damage
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Reduce Limescale Buildup
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Clean Water, Whole Home
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Protect Your Home Appliances
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Softer Skin & Healthier Hair
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Pure, Better-Tasting Drinking Water
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Prevent Costly Hard Water Damage
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Reduce Limescale Buildup
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Clean Water, Whole Home
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RO Water Filters Reverse Osmosis Water Filters for Pure Drinking Water
Salt Water Softeners Salt Water Softeners for Powerful Hard Water Treatment
Pure Water. Better Living.

Experience the difference clean, softened water makes in your daily life — from healthier skin to better tasting drinking water.

👉 Softer skin and smoother hair with every shower.

Descaling Solutions Descaling Solutions for Removing Limescale and Mineral Buildup
👉 Enjoy healthier skin and hair with every use.
Water Filter Cleaning Kits

👉 Prevent scale buildup and keep your appliances running efficiently.

Under Sink Water Filters

👉 Softer, brighter clothes that last longer with every wash.

Reverse Osmosis Systems Best Reverse Osmosis Systems for Clean Drinking Water

See the Difference in Your Water — Instantly

Hard water, chlorine, and hidden contaminants can affect your health, skin, and appliances.

Our advanced filtration system removes impurities and delivers clean, safe water throughout your entire home.

Feel the difference in every drop — from your kitchen to your shower.

Impurity Reduction 95%
Chlorine Removal 99%

FAQ

Is installation difficult?
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No. Our systems are designed for easy DIY installation and most homeowners can install them without professional tools. If you need help, our support team is always available.
Do I need a plumber to install the system?
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No plumber is required. The system connects directly to your existing plumbing with simple fittings.
How does this system improve water quality?
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Our filtration system helps reduce common impurities and minerals that cause hard water problems, improving the taste and clarity of your water.
Will this help protect my appliances?
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Yes. Hard water minerals can build up inside appliances. Our system helps reduce scale buildup, helping extend the life of washing machines, dishwashers, and water heaters.
How often do filters need to be replaced?
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Most filters only need replacement every 6–12 months, depending on usage and local water conditions.
Will this improve my skin and hair?
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Many customers notice softer skin and smoother hair after switching to filtered or softened water.
What if I'm not satisfied with the system?
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If you're not completely satisfied, you can return your product within 30 days for a full refund.
Easy to install — no plumber required. Our experts are here if you need help.
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