# Waterdrop Countertop Reverse Osmosis Water Filter M6SL A 40 oz glass pitcher comes with this countertop reverse osmosis filter, but its refillable tanks may not suit hands-off users. - [Original product page](https://www.ofertitastop.com/us/product/waterdrop-countertop-reverse-osmosis-water-filter) - Market: US - Language: en-US - Currency: USD - Product updated: 2026-10-13T03:49:46.732Z - Category: Home & Garden > Kitchen & Dining > Kitchen Appliances > Water Filters - Source store: amazon US - Active deal: Yes - Price: 248.99 USD - Previous price: 329.00 USD - Rating: 4 / 5 - Reviews: 686 Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store. ## Description The detachable 40 oz glass pitcher is the standout practical detail: it gives you a separate container for chilled water, cooking, or filling a pet’s bowl, while the main unit stays on the counter. This Waterdrop countertop reverse osmosis filter uses an eight-stage system with a 0.0001μm RO membrane and adds minerals including potassium, calcium, sodium, and magnesium. It is designed for everyday drinking as well as coffee, tea, and cooking, with touch controls for preset water volumes and a favorite mode. For a renter, office, or RV where a plumbed-in system is inconvenient, its fill-and-plug setup offers a simpler approach, the tradeoff is that you need to refill and manage the tanks yourself. ## What matters most The system is listed as NSF/ANSI 58 certified, and the product information says third-party lab testing found reductions in TDS, PFOA, PFOS, nitrate, fluoride, arsenic, lead, and other substances. Those claims give buyers a clearer sense of its filtration purpose, though the supplied information does not give reduction percentages for each contaminant. Mineral infusion is part of the design, so the water is not presented as simply filtered and left unchanged, the added minerals are intended to give it a more balanced taste. The countertop reservoir holds 185 oz in total: 135 oz for feed water and 50 oz for wastewater. The stated pure-to-drain ratio is 3:1, and the two water supplies are kept separate. You can reuse the wastewater for tasks such as watering plants or cleaning, rather than treating it as drinking water. Ten in mind that this is a countertop appliance with separate water to manage, not a direct-to-faucet system, frequent use means keeping the feed tank filled and making room for the pitcher. ## How to use it Fill the feed-water tank, plug in the unit, and dispense water using the touch controls. The listing describes five volume options, including 4 oz, 8 oz, and 16 oz, plus a favorite mode for saving a preferred amount. That makes a quick espresso or a mug of coffee straightforward without measuring water separately. A filter-life indicator and alerts provide maintenance prompts, while the NFC label links to a smart guide with setup videos, FAQs, and customer support. One operating detail matters: during flushing, keep the pure-water pitcher on the unit. The product instructions specifically warn against removing it at that stage. The pitcher is glass and detachable, but the product information does not specify cleaning instructions or dishwasher compatibility. ## Practical tips Use the pitcher as a ready-to-pour supply for the fridge, then keep the countertop unit available for refills. When preparing tea or cooking, the preset dispensing options can reduce the need to pour by eye, for a larger need, the 16 oz setting is the listed option closest to a soup-bowl portion. You can also collect the wastewater for non-drinking jobs around the home, which makes more practical use of the system’s output. Compared with a basic pitcher filter, this setup adds reverse osmosis, mineral infusion, dispensing controls, and a filter-life indicator, but it also takes counter space and involves two tanks. A solid pick if you want a standalone RO system without installation and value a removable glass pitcher. You may want to skip it if you need a direct plumbing connection or do not want to handle refills and wastewater. ## Practical doubts **Does it need to connect to a water line?** No. The listing describes a fill-and-plug setup, with no installation required. **Can the glass pitcher be removed?** Yes. It is a detachable 40 oz glass pitcher, described as suitable for fridge storage, cooking, or pouring water for pets. **What should stay in place during flushing?** Keep the pure-water pitcher on the unit during flushing, as specified in the product instructions. ## When it makes sense Choose this Waterdrop if you want countertop reverse osmosis without modifying a faucet setup, and the separate glass pitcher, mineral addition, and preset dispensing fit your routine. It suits someone who will use filtered water for more than occasional drinking—such as making coffee or cooking—and is comfortable refilling the feed tank. If your priority is a compact, low-intervention filter or a system connected directly to the plumbing, this configuration may be more involved than you need. ## Images ![Waterdrop Countertop Reverse Osmosis Water Filter M6SL — 1](https://www.ofertitastop.com/i/WHWXNPyzMlitm_BRt2gomR9CGs-iSRDtuS5Pg3O4l2eG_t4DATfkSK6HSb-4pXHJsl9ggkEpxNuhhnnOnGPCq1QPyJ0sskQ4X4K6Iz8KP_gQ0tNq5X5DAA.jpg) ![Waterdrop Countertop Reverse Osmosis Water Filter M6SL — 2](https://www.ofertitastop.com/i/P4o9-9MWR5OA928kh0hwR02NoVBhLpgEK41QCyM6JtdHpRF0ePnMCM3onlIAjKIaDSdiCuxwwHAq37xQco03TYRTK0M9EU5Zsr2uVHi0CU4-y6GPB5dv5A.jpg) ![Waterdrop Countertop Reverse Osmosis Water Filter M6SL — 3](https://www.ofertitastop.com/i/LTvDeOj6roQ0n3qKdkeYggBJ87CoCH5huIJ_BxvvZVdbYJu1sYmUuSYcKEdT25DoaJ9aKsBmnSUjFXsRbXwW9PmH7JQDo3WtBrF4Q_-xT275xCehBKXtLg.jpg) ![Waterdrop Countertop Reverse Osmosis Water Filter M6SL — 4](https://www.ofertitastop.com/i/pC6l0wgtF_6lzviimiaiehDZQClnCJUd5IkV7tv__pe39mSXqVrfzH7BRsqlsOpNP8CWES7ETn8OVB54XfmwDsUvMZV6Fa1q81bcXd3FWfajrqhB2u1wOA.jpg) ![Waterdrop Countertop Reverse Osmosis Water Filter M6SL — 5](https://www.ofertitastop.com/i/3c-TwxeLkA99q0yVxMIRmb8gcj849F5AvoZW9LYQkbYrx6QQOTTBSWbSKFubt9qLw-nuZCFESTMeQ622eX1Bmzek_fynF1Y_2bezADziIyo2mYx82Ng9bg.jpg)