Watts Premier

Watts Premier Bi-Annual RO Pure Plus 2-Pack Filtration Kit for 4 Stage Pure Plus Zero Pure Plus Reverse

1575+ bought in the past month

$39.99

About this item

  • BI-ANNUAL FILTER REPLACEMENT KIT: Say goodbye to unpleasant tastes and odors with the Watts Premier Bi-Annual RO Pure Plus 2-Pack Filter Kit, a 6-month supply for your under sink RO Pure (WP531411, WP531407) or Zero/Pure Plus (WP531517, WP531417). The included 2 filter types 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 2-pack 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) for conditioning the water and reducing chlorine taste and odors.
  • SMART DESIGN: Each of these top-performing 11-inch filters is denoted by a different color for easy identification: red for sediment and yellow for pre-filter. 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 these sediment and carbon pre-filters every 6 months.
  • 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.
$39.99

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Product details

MaterialCarbon
Product Dimensions5"D x 12"W x 2"H
Item Weight1 Pounds
External Testing CertificationANSI
Product BenefitsReduces harmful chemcals and odor in water by 99.8%

Technical specifications

materialCarbon
product_dimensions5"D x 12"W x 2"H
item_weight1 pounds
external_testing_certificationANSI
product_benefitsReduces harmful chemcals and odor in water by 99.8%
brandWatts Premier
eu_spare_part_availability_duration1 Years
set_nameBi-Annual RO Pure Plus 2-Pack Filtration Kit
upc099351531028
unit_count1.0 Count
number_of_items1
manufacturerWatts
item_model_numberWP531102
best_sellers_rank#27,972 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #218 in Replacement Under-Sink Water Filters
is_discontinued_by_manufacturerNo
date_first_availableMarch 4, 2011

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Customer reviews

4.71,263 ratings

Customers say

Customers find the water filter easy to install, with one mentioning it takes just 10 seconds to change.

★★★★★

OEM replacement

Gary AJanuary 28, 2026✓ Verified purchase

OEM replacements. Filters water like they should. easy to install Read more

★★★★★

Reliable product used for decade

Nellie WJuly 6, 2025✓ Verified purchase

I have used this filters for over two decades. Read more

★★★★★

Easy to insert

Huntbeach1November 28, 2025✓ Verified purchase

Very quick delivery and easy to exchange out Read more

★★★★★

Great replacements!

Dennis ZhenDecember 3, 2025✓ Verified purchase

Great replacements! Read more

★★★★☆

They Work

AnneDecember 15, 2020✓ Verified purchase

Installed easily into the system. Once flushed my water tastes just fine. These are the exact replacement units for my system so I did not expect any problems. After installation you have to flush the storage tank three times. It takes two to three hours to refill my storage tank so the process is tedious, be patient and read the directions! I suggest filling a container with filtered water before you start, that way there is some on hand. My directions suggested taking this time to check the pressure in the storage tank. For my system it should be 5 to 7 PSI in the tank. The pressure was low so I "carefully" pumped it up at the end of a drain cycle. It will push any remaining water out of the tank so you may have to pressurize several times. The tank MUST be empty for the final pressurization. I have much better flow now that I did that. One other thing, if your system is hooked up to your ice maker, isolate the ice maker before flushing the tanks 3 times. If you don't do this then you will need to flush the line going to the icemaker. The reason for knocking off one star is the price. I feel that the price could be a little more reasonable. Read more

★★★★★

Seem to be real deal

PatSeptember 23, 2025✓ Verified purchase

As advertised. Cheaper than what the companies web site sells them for. Hopefully they aren’t “fake”? Read more

★★★★★

perfect fit

IEMAugust 14, 2025✓ Verified purchase

good system to ashier family has great drinking water , much better than buying bottled water. Read more

★★★★★

Real deal

MelvinAugust 21, 2025✓ Verified purchase

Low price. Read more

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