This countertop RO water filter uses a multi-stage filtration process to reduce impurities, including sediments, chlorine, fluoride, and others. It effectively reduces over 99% of dissolved solids from your tap water, delivering crisp, clean drinking water.
Waterdrop C1S Countertop CoreRO System
$96.59
Free shipping within 3 days
Easy returns within 30 days
Shopping information security
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.wd-new-year-launch-content { display: block; max-width: 1440px; padding: 80px 50px; margin: 0 auto; } .wd-new-year-launch-content-info { padding: 32px 80px; display: flex; align-items: center; justify-content: center; column-gap: 190px; border-radius: 0px 0px 24px 24px; background: linear-gradient(94deg, #F2EDEA 3.49%, #EBE3E0 100.71%); position: relative; display: none; } .wd-new-year-launch-content-svg1 { position: absolute; display: block; width: 24px; top: 127px; left: 46.2%; } .wd-new-year-launch-content-svg2 { position: absolute; display: block; width: 34px; top: 19px; right: 7.2%; } .wd-new-year-launch-content-svg3 { position: absolute; display: block; width: 139px; bottom: 0; left: 41.56%; } .wd-new-year-launch-content-des-title { display: flex; align-items: center; column-gap: 12px; color: var(–111111, #111); font-family: Poppins; font-size: 20px; font-style: normal; font-weight: 600; line-height: 125%; margin-bottom: 8px; } .wd-new-year-launch-content-des-title img { display: block; width: 28px; } .wd-new-year-launch-content-des-text { color: var(–666666, #666); font-family: Poppins; font-size: 14px; font-style: normal; font-weight: 400; line-height: 150%; margin-bottom: 24px; } .wd-new-year-launch-content-des-text:last-child { margin-bottom: 0; } .wd-new-year-launch-content-des { max-width: 510px; } .wd-new-year-launch-content-form { max-width: 480px; border-radius: 24px; } .wd-new-year-launch-content-form img { width: 100%; height: auto; } .wd-new-year-launch-content-des-text span { wcolor: var(–111111, #111); font-family: Poppins; font-size: 14px; font-style: italic; font-weight: 500; line-height: 150%; } .wd-new-year-launch-content-banner { background-image: url(https://cdn.shopify.com/s/files/1/0078/6156/7570/files/wd-new-year-page-2024-content-banner-pc.png?v=1703813541); background-size: cover; background-position: center; background-repeat: no-repeat; height: 360px; padding: 80px; border-radius: 24px 24px 0 0; margin-bottom: 16px; margin-bottom: 0; } .wd-new-year-launch-content-banner-title { color: var(–111111, #111); font-family: ‘poppins-semiBold’; font-size: 28px; font-style: normal; font-weight: 600; line-height: 125%; margin-bottom: 12px; } .wd-new-year-launch-content-banner-info { color: var(–blue-, #036AFF); font-family: ‘poppins-semiBold’; font-size: 24px; font-style: normal; font-weight: 600; line-height: 125%; margin-bottom: 12px; } .wd-new-year-launch-content-banner-des { color: var(–111111, #111); font-family: ‘poppins-semiBold’; font-size: 20px; font-style: normal; font-weight: 400; line-height: 125%; margin-bottom: 32px; } .wd-new-year-launch-content-banner-btns { display: flex; column-gap: 24px; align-items: center; display: none; } .wd-new-year-launch-content-banner-btn a { display: block; padding: 10px 24px; border-radius: 20px; background: var(–blue-, #036AFF); height: 40px; color: var(–FFFFFF, #FFF); text-align: center; font-family: Poppins; font-size: 16px; font-style: normal; font-weight: 400; line-height: 20px; } .wd-new-year-launch-content-banner-btn a:hover { background: #2B8BFF; } .wd-new-year-launch-content-banner-btn span { color: var(–FFFFFF, #FFF); font-family: Poppins; font-size: 12px; font-style: italic; font-weight: 400; line-height: 20px; } @media screen and (max-width:1440px) { .wd-new-year-launch-content-info { column-gap: 90px; } } @media screen and (max-width:1024px) { .wd-new-year-launch-content-banner { background-image: url(https://cdn.shopify.com/s/files/1/0078/6156/7570/files/wd-new-year-page-2024-content-banner-pad.png?v=1703813541); height: 332px; padding: 64px 40px; } .wd-new-year-launch-content-info { padding: 40px; flex-direction: column; row-gap: 40px; } .wd-new-year-launch-content-des { max-width: 100%; width: 100%; } .wd-new-year-launch-content-form { max-width: 100%; width: 100%; } .wd-new-year-launch-content-des-title { font-size: 18px; } .wd-new-year-launch-content-des-text { margin-bottom: 16px; } .wd-new-year-launch-content-svg1 { top: 41px; left: 76.7%; } .wd-new-year-launch-content-svg2 { top: 206px; right: 45.4%; } .wd-new-year-launch-content-svg3 { bottom: 352px; left: 435px; } .wd-new-year-launch-content { padding: 80px 34px; } .wd-new-year-launch-content-banner-title { font-size: 22px; margin-bottom: 12px; } .wd-new-year-launch-content-banner-info { font-size: 20px; margin-bottom: 12px; } .wd-new-year-launch-content-banner-des { font-size: 16px; margin-bottom: 24px; } .wd-new-year-launch-content-banner-btns { column-gap: 16px; } } .wd-1106-video-pc { display: block; } .wd-1106-video-mobile { display: none; } @media screen and (max-width:767px) { .wd-1106-video-pc { display: none; } #productOverview .blocks-item-opposite.blocks-item-opposite-reverse { flex-direction: column-reverse; } .wd-1106-video-mobile { display: block; } .wd-new-year-launch-content-banner-title { font-size: 24px; margin-bottom: 8px; } .wd-new-year-launch-content-banner-info { font-size: 18px; margin-bottom: 8px; } .wd-new-year-launch-content-banner-des { font-size: 14px; margin-bottom: 24px; } .wd-new-year-launch-content-banner-btns { flex-direction: column; align-items: start; row-gap: 16px; } .wd-new-year-launch-content-banner-btn a { width: 179px; } .wd-new-year-launch-content-banner { background-image: url(https://cdn.shopify.com/s/files/1/0078/6156/7570/files/wd-new-year-page-2024-content-banner-mobile.png?v=1703813541); height: calc(((100vw – 32px) * 500) / 343); padding: 40px 24px; border-radius: 16px 16px 0 0; } .wd-new-year-launch-content { padding: 40px 16px; } .wd-new-year-launch-content-info { padding: 20px 16px; row-gap: 24px; border-radius: 0 0 16px 16px; } .wd-new-year-launch-content-des { width: calc(100% – 16px); margin: 0 auto; } .wd-new-year-launch-content-des-title img { width: 24px; } .wd-new-year-launch-content-des-title { column-gap: 8px; font-size: 16px; } .wd-new-year-launch-content-des-text { font-size: 12px; margin-bottom: 16px; } .wd-new-year-launch-content-form { padding: 20px 16px; border-radius: 16px; } .wd-new-year-launch-content-svg3 { bottom: 337px; left: auto; right: 4.8%; width: 98px; } .wd-new-year-launch-content-svg1 { top: 310px; left: 6.9%; } .wd-new-year-launch-content-svg2 { top: 21px; right: 27.2%; } } @media screen and (max-width:532px) { .wd-new-year-launch-content-svg3 { bottom: 355px; } } 
2X Points 
Gift with Purchase Worry-Free Trial 
2X Points 2X Reward Points on CoreRO system purchases. Redeem your points for a 10% coupon, replacement filters, and more.
Gift with Purchase Receive a 5% OFF coupon (exclusive for C1 replacement filter) with no expiration.
*The discount code will be sent via email within 3 days after the purchase of C1.
Worry-Free Trial Extended 60-Day Return Period
.wd-product-background-swiper4-btns { position: relative; width: 100%; margin-bottom: 50px; margin-top: 30px; } .wd-product-swiper-button-living-prev svg, .wd-product-swiper-button-living-next svg { width: 40px; height: 40px; } .wd-product-background-swiper4-gird-imgs { display: none; } @media screen and (max-width:767px) { .wd-product-background-swiper4-gird-imgs { display: block; } .wd-product-background-swiper4-img-pc { display: none; } } .wd-product-background-swiper4-btns .swiper-pagination.swiper-pagination-1106-swiper4 { bottom: -10px !important; width: 124px !important; left: 50% !important; transform: translate(-50%); border: none } .wd-product-background-swiper4-btns .swiper-pagination-bullet-active { border-color: #00549c !important; } .wd-product-background-swiper4-btns .swiper-pagination-bullet:after { display: none; }
var wd_product_swiper4 = new Swiper(“.wd-product-background-swiper4”, { loop: true, navigation: { nextEl: “.wd-product-swiper-button-living-next”, prevEl: “.wd-product-swiper-button-living-prev”, }, pagination: { clickable: true, el: ‘.swiper-pagination-1106-swiper4’, }, on: { } });
.swiper-pagination-video-1106 .swiper-pagination-bullet:after { display: none; } .swiper-pagination-video-1106 .swiper-pagination-bullet { background-color: #000; } .swiper-pagination-video-1106 .swiper-pagination-bullet-active { width: 48px; height: 8px; border-radius: 10px; background-color: #999 !important; border: none; overflow: hidden; } #progressBar { transition: width 50ms linear; width: 0; height: 100%; background-color: #111; border-radius: 10px; } #resetButton, #playPauseButton { position: absolute; left: 50%; bottom: 50%; transform: translate(-50%, 50%); z-index: 10000; width: 100px; height: 100px; } .wd-product-background-swiper3-title { color: var(–111111, #111); font-family: Poppins; font-size: 48px; font-style: normal; font-weight: 600; line-height: 125%; margin-bottom: 40px; margin-top: 110px; text-transform: capitalize; } .swiper-pagination.swiper-pagination-video-1106 { position: relative; margin-top: 40px; margin-bottom: 50px } @media screen and (max-width:767px) { .wd-product-background-swiper3-title { font-size: 24px; margin-bottom: 24px; margin-top: 80px; } .swiper-pagination.swiper-pagination-video-1106 { margin-top: 12px; } .resetButton, .playPauseButton { width: 50px; height: 50px; } .swiper-box .swiper-pagination.swiper-pagination-video-1106 { bottom: -10px !important; width: 0 !important; min-width: 90px; left: 50% !important; transform: translate(-50%); border: none } .overview-item-wide.overview-item-wide-swiper { flex-direction: column; } }
Get the highlights.
let pcVideoUrls = [ “https://cdn.shopify.com/videos/c/o/v/35090672f69b44e5aa36685f0cd8f4f1.mp4”, “https://cdn.shopify.com/videos/c/o/v/89087550f48a4bc1b704ba7c368a63f8.mp4”, “https://cdn.shopify.com/videos/c/o/v/540e9b2cbf14457390b6d00759db3047.mp4”, ]; let mobileVideoUrls = [ “https://cdn.shopify.com/videos/c/o/v/e98946e81bb2423988f53fb08f106fad.mp4”, “https://cdn.shopify.com/videos/c/o/v/96dd0a9f97ae4c03b7be7839d17b76f6.mp4”, “https://cdn.shopify.com/videos/c/o/v/bd631f677b2f475dada1ea09cefad962.mp4”, ]; function updateVideoSourceForSlides() { $(‘.wd-product-background-swiper3-slide’).each(function (index) { let videoElement = $(this).find(‘.slide-video’); let selectedSrc = $(window).width() < 768 ? mobileVideoUrls[index] : pcVideoUrls[index]; videoElement.find('source').attr('src', selectedSrc); videoElement[0].load(); }); $('.wd-product-background-swiper3-slide').first().find('.slide-video').get(0).play(); } let wd_product_swiper3 = new Swiper(".wd-product-background-swiper3", { loop: false, allowTouchMove: false, on: { slideChangeTransitionEnd: function () { playCurrentSlideVideo(wd_product_swiper3); } }, pagination: { el: '.swiper-pagination-video-1106', }, }); let showPlayBtn = false if (!showPlayBtn) { $('.wd-product-background-swiper3').mouseenter(function () { if (!showPlayBtn) { $('#playPauseButton').fadeIn(500); } }); $('.wd-product-background-swiper3').mouseleave(function () { $('#playPauseButton').fadeOut(500); }); } function updateProgressBar(video, progressBar) { if (!video) return; let duration = video.duration; let currentTime = video.currentTime; let progress = (currentTime / duration) * 100; progressBar.css('width', progress + '%'); } function animateProgressBar(video, progressBar) { if (!video.paused && !video.ended) { updateProgressBar(video, progressBar); requestAnimationFrame(function () { animateProgressBar(video, progressBar); }); } } function playCurrentSlideVideo(swiper) { let currentVideo = wd_product_swiper3.slides[wd_product_swiper3.activeIndex].querySelector('video'); if (currentVideo) { currentVideo.play(); }; $('.swiper-pagination-bullet').empty(); let progressBar = $('
‘).appendTo(‘.swiper-pagination-bullet-active’); animateProgressBar(currentVideo, progressBar); } $(‘#playPauseButton’).click(function () { let currentVideo = wd_product_swiper3.slides[wd_product_swiper3.activeIndex].querySelector(‘video’); if (!currentVideo) return; if (currentVideo.paused) { currentVideo.play(); animateProgressBar(currentVideo, $(‘#progressBar’)); $(this).html(` `); } else { currentVideo.pause(); $(this).html(` `); } }); $(‘.slide-video’).on(‘ended’, function () { if (wd_product_swiper3.isEnd) { $(‘#resetButton’).show(); showPlayBtn = true; $(‘#playPauseButton’).fadeOut(500); } else { wd_product_swiper3.slideNext(); } }); $(‘#resetButton’).click(function () { $(‘video’).each(function () { this.load(); }); showPlayBtn = false; wd_product_swiper3.slideTo(0, 500); $(this).hide(); $(‘#playPauseButton’).fadeIn(500); playCurrentSlideVideo(wd_product_swiper3); }); // playCurrentSlideVideo(wd_product_swiper3); $(window).scroll(function () { var targetOffset = $(‘.wd-product-background-swiper3’).offset().top – 500; var windowScrollTop = $(window).scrollTop(); var windowHeight = $(window).height(); // 当元素进入视口时执行函数 if (windowScrollTop + windowHeight > targetOffset) { updateVideoSourceForSlides(); playCurrentSlideVideo(wd_product_swiper3); $(window).off(‘scroll’); // 可选，执行一次后取消监听 } });
.overview-item-wide-media { position: relative; } .overview-item-wide-media .overview-item-wide-media-btn { position: absolute; bottom: 24px; right: 40px; display: flex; padding: 16px 24px; align-items: center; gap: 4px; border-radius: 50px; background: #036AFF; color: var(–FFFFFF, #FFF); text-align: center; font-family: Poppins; font-size: 16px; font-style: normal; font-weight: 400; line-height: 125%; cursor: pointer; /* 20px */ } .overview-item-wide-media .overview-item-wide-media-btn:hover { background: #2B8BFF; }
5-stage RO Filtration.
.wd-1106-pc-five-imgs { display: flex; width: 100%; gap: 16px; } .wd-1106-five-img-item { flex: 1; max-width: 230px; } .wd-1106-pc-five-imgs img { width: 100%; } .wd-1106-pc-five-imgs-title { color: var(–111111, #111); text-align: center; font-family: Poppins; font-size: 32px; font-style: normal; font-weight: 600; line-height: 125%; margin-bottom: 12px; /* 40px */ } .wd-1106-pc-five-imgs-detail { color: var(–666666, #666); text-align: center; font-family: Poppins; font-size: 18px; font-style: normal; font-weight: 400; line-height: 150%; margin-bottom: 50px; /* 27px */ } @media screen and (max-width:767px) { .wd-1106-pc-five-imgs { flex-direction: column; } .wd-1106-five-img-item { flex: 1; max-width: 100%; } .wd-1106-pc-five-imgs-title { font-size: 20px; text-align: left; } .wd-1106-pc-five-imgs-detail { font-size: 14px; margin-bottom: 12px; } }
Easy to Operate.
Adjustable and Convenient
Choose from 5 preset volume options or set a customized water volume to meet your pure water needs. Now you can enjoy a refined and unique drinking experience with this RO system.
@media screen and (max-width:767px) { .blocks-item.blocks-item-opposite.blocks-item-opposite-video { padding: 0; flex-direction: column-reverse; } }
Easy Controls with Smart Touch Screen
- The smart touch screen in this countertop RO water filter provides the TDS level and filter lifespan at a glance. Operating this system is seamless, and obtaining clean, refreshing water is smooth.
Fits Every Countertop.
.wd-page-brand-story-our_products-pc { display: block; } .wd-page-brand-story-our_products-pad { display: none; } .wd-page-brand-story-our_products-mobile { display: none; } .wd-page-brand-story-our_products { padding-top: 80px; } .wd-page-brand-story-our_products-items { display: flex; justify-content: center; position: relative; border-radius: 16px; overflow: hidden; } .wd-page-brand-story-our_products-word { position: absolute; top: 50px; left: 50%; transform: translate(-50%); text-align: center; z-index: 10000; } .wd-page-brand-story-our_products-title { color: var(–111111, #111); text-align: center; font-family: Poppins; font-size: 36px; font-style: normal; font-weight: 600; line-height: 125%; /* 45px */ margin-bottom: 8px; } .wd-page-brand-story-our_products-detail { color: var(–666666, #666); font-family: Poppins; font-size: 24px; font-style: normal; font-weight: 400; line-height: 125%; /* 30px */ text-transform: capitalize; } .wd-page-brand-story-our_products-item { max-width: 335px; overflow: hidden; position: relative; transition: 0.8s all; } .wd-page-brand-story-our_products-item-word { position: absolute; bottom: 60px; left: 50%; transform: translate(-50%); color: var(–111111, #111); text-align: center; font-family: Poppins; font-size: 24px; font-style: normal; font-weight: 600; line-height: 125%; /* 30px */ } .wd-page-brand-story-our_products-item-transform { max-width: 100%; } .wd-page-brand-story-our_products-item-transform-none { max-width: 335px; } .wd-page-brand-story-our_products-item-transform-siblings { max-width: 0; } .wd-page-brand-story-our_products-item img { height: 640px; transition: 0.8s all; max-width: none; width: auto; } .wd-page-brand-story-our_products-items .wd-page-brand-story-our_products-item:nth-child(3) img { transform: translateX(-530px); } .wd-page-brand-story-our_products-items .wd-page-brand-story-our_products-item:nth-child(4) img { transform: translateX(-604px); } .wd-page-brand-story-our_products-items .wd-page-brand-story-our_products-item:nth-child(5) img { transform: translateX(-701px); } .wd-page-brand-story-our_products-items .wd-page-brand-story-our_products-item:nth-child(6) img { transform: translateX(-610px); } .wd-page-brand-story-our_products-item-svg-transform { transform: rotateZ(-45deg); } @media screen and (max-width:1023px) { .wd-page-brand-story-our_products-word { display: none; } .wd-page-brand-story-our_products-pc { display: none; } .wd-page-brand-story-our_products-item-word { display: none; } .wd-page-brand-story-our_products-pad { display: block; } .wd-page-brand-story-our_products-item img { height: 400px; } .wd-page-brand-story-our_products-items { padding: 0 5.33%; } } @media screen and (max-width:767px) { .wd-page-brand-story-our_products { padding-top: 0; } .wd-page-brand-story-our_products-items { display: none; } .wd-page-brand-story-our_products-pc { display: none; } } 
Installation-free Design
Put in anywhere you want
Kitchen
Living room
Office
RV
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Protect the environment.
3:1 Low Drain Ratio
- Dispensing 3 cups of clean water results in just 1 cup of wastewater, maximizing water savings and delivering significant environmental benefits.
Purity in Every Drop
- Twist and pull design. Easy for filter replacement.
- 12-month long service life. Just pay 0.2 dollars every day, and you can continuously enjoy a convenient water purification experience.
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Choose Your Perfect Countertop RO System
New
WD-C1S
USD 249
75 GPD
–
5-stage Deep Filtration
5-mode Customizable Water Capacity
–
41-100 °F/5-38°C
Smart Display
3: 1 Pure to Drain Ration
New
WD-C1H
USD 299
75 GPD
Instant Hot Water
5-stage Deep Filtration
5-mode Customizable Water Capacity
5-mode Temperature Options
41-203 °F/5-95°C
Smart Display
3: 1 Pure to Drain Ration
| WD-C1S
Add to Cart | WD-C1H
Add to Cart |  Add to Cart |  WD-K19-H
Add to Cart |  WD-K19-S
Add to Cart |  WD-N1-W
Add to Cart | |
| Customer rating | ||||||
|---|---|---|---|---|---|---|
| Price | ||||||
| Daily Production Rate | 75 GPD | 75 GPD | 100 GPD | 75 GPD | 75 GPD | 75 GPD |
Pure to Drain Rate Drain ratio stands for the ratio of wastewater and purified water dispensed by a RO system. For example, the 3:1 drain ratio means it uses up a gallon of wastewater for every 3 gallons of pure water you get. |  | |  | | | |
| Display | Filter lifespan & TDS & Water volume | Filter lifespan & Water volume & Water temperature | Filter lifespan & TDS & Water volume & Water temperature | Filter lifespan & TDS & Water volume & Water temperature | Filter lifespan & TDS & Water volume | Filter lifespan & TDS & Water volume |
| Water Capacity Options | 5 | 5 | 5 | 5 | 4 | 4 |
| Water Tank Capacity | 110 OZ | 110 OZ | 204 Oz | 170 Oz | 170 Oz | 135 oz |
| Self-clean | √ | √ | √ | √ | √ | √ |
| Electricity Required | √ | √ | √ | √ | √ | √ |
| Need Installation | × | × | × | × | × | × |
| Filter Cartridges | WD-C1RF | WD-C1RF | WD-A1-CF | WD-K19RF | WD-K19RF | WD-N1-CF |
| Filter Lifespan | 12 Mths | 12 Mths | WD-A1-CF: 6 Months WD-A1-RO: 12 Months | 12 Mths | 12 Mths | CF-6 Mths MRO-18 Mths |
| Dimensions (inch) | 15.6” *10.9” *17.0” | 15.6” *10.9” *17.0” | 18.3” *7.8” *17.1” | 15.51″ * 9.2″ * 17.56″ | 15.51″ * 9.2″ * 17.56″ | 17.1×7.0×15.5 |
Model
WD-C1S-US
Size (L*W*H)
15.6" *10.9" *17.0"
Feed Water Temperature
41-100 °F/5-38°C
Daily Production Rate
75 GPD
Feed Water Requirement
Municipal Tap Water
Power
50 W
System Voltage
100-240 V
Rated Frequency
50-60 Hz
Feed Water Tank Capacity
3.2L/0.85G
Pure water tank Capacity
1L/0.26 G
What is the filtration performance of the RO water system?
How does the water quality from this RO system compare to bottled water?
The water quality from this RO system is on par with, or even exceeds. By removing fine particulates and dissolved solids, the system delivers exceptional water purity directly from your tap. And its 3:1 water efficiency ratio achieves less waste while being sustainable.
Is the installation of this RO system something I can manage?
Yes, our unit is designed for DIY installation and comes with a clear, step-by-step manual to guide you through the process. If you encounter any difficulties, customer support is readily available to assist you via phone or email.
How long does the filtration system last before needing a replacement?
The lifespan of the filter depends on usage and local water quality, but typically it should be replaced every 12 months.
How can I use its inner pure water tank?
The tank can be removed from the system and you can put it in the refrigerator for a variety of drinking needs. Additionally, its 40oz capacity can meet your daily water consumption, so that you can enjoy pure water more conveniently.
Can I use Settings to get the volume of water I want?
Yes! This Countertop RO has a smart touch screen for TDS real-time displaying and filter life monitoring. Enjoy the convenience of 5 adjustable water volumes and effortlessly customize your cup size with simple controls.
WD-C1RF Replacement for CoreRO Countertop System
- Provides you with 12 months or 1,000 gallons of clean filtered water.
- Replace the water filter in 3 seconds with a single twist. No tools are required.
- Reduce most contaminants and improves the taste of water.
59.00
Total price: 59.00
Total price: 59.00
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