9 Best 1.6 GPF Toilet | More Push, Less Plunge: 1.6 GPF Toilets

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The TOTO Drake with Tornado Flush uses centrifugal force to spin water around the bowl rather than relying on traditional rim jets. This action fully washes the bowl surface with each flush, reducing the spots where waste can cling. The 3-inch flush valve paired with a 2-1/8-inch trapway delivers a surge of water that clears waste in a single 1.6 GPF cycle.

The CEFIONTECT glaze creates a nanoscale surface that prevents debris from bonding to the ceramic. Users report far less staining and buildup compared to standard glazed bowls, which directly translates to less scrubbing. The universal-height bowl (roughly 17 inches to the rim) meets ADA guidelines without feeling overly tall.

This two-piece model ships without a seat or wax ring, so you need to budget for those separately. The left-hand trip lever is standard, which may conflict with some existing bathroom layouts. Despite those extras, the flush performance and glaze durability justify the investment for anyone tired of plunging a weak toilet.

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This variant of the Drake includes the same Tornado Flush and CEFIONTECT glaze as the CST776 but adds a factory-matched SoftClose seat. The seat’s slow-close hinge prevents slamming, which is a practical upgrade for households with children or late-night bathroom visits. The elongated bowl shape provides extra legroom for taller users.

WASHLET+ compatibility is a key differentiator here. The tank and bowl are pre-configured to conceal the bidet’s cord and water line, making a future upgrade to a TOTO bidet seat clean and integrated. The 1.6 GPF flush retains the same 3-inch flush valve and siphon-jet bowl found on the CST776, so there is no performance trade-off for the added seat.

Some buyers note that the SoftClose seat feels slightly lightweight compared to aftermarket wooden or enameled seats. The packaging is solid, but the tank and bowl may arrive in separate boxes, which can confuse installation timing. For buyers planning a bidet upgrade, this package saves the hassle of sourcing a compatible seat later.

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The Champion 4 lives up to its name with a 4-inch flush valve — one of the largest in any residential toilet — and a 2-3/8-inch fully glazed trapway. These dimensions allow a massive volume of water to enter the bowl rapidly, creating a strong siphon that pulls waste through without hesitation. At 1.6 GPF, this toilet handles heavy loads that would choke a smaller-valve design.

The EverClean surface treatment inhibits the growth of stain- and odor-causing bacteria, mold, and mildew on the vitreous china. This is a factory-applied antimicrobial finish, not a coating that wears off, so the bowl stays cleaner for longer between scrubs. The one-piece construction eliminates the crevice between tank and bowl where dust and grime accumulate.

The chair-height bowl sits at 16.5 inches from floor to seat, slightly lower than the typical ADA 17-inch standard. Users who prefer a taller seat may notice the difference. The included slow-close seat is a plastic model that some buyers replace with a sturdier option. The unit is heavy at 115 pounds, requiring two people for safe installation.

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The EPLO U8MAX is a fully integrated smart toilet that pairs a 1.6 GPF flush with a 1000-gram MaP score, ensuring the mechanical foundation is as solid as the smart features. The Foam Shield dispenses a layer of foam into the bowl before use, which prevents splashback and coats the ceramic so waste slides off rather than sticking. This reduces the need for manual bowl cleaning significantly.

The moving air dryer adjusts temperature, wind speed, and position for faster drying after the bidet wash. The elongated seat is heated, and the unit includes automatic lid open/close based on proximity sensors. The dual LED display shows water temperature and seat status, while the nightlight provides gentle illumination for midnight trips.

Installation requires a nearby GFCI power outlet, which may need an electrician in older homes. The unit is 116 pounds and requires careful handling. Some users report that the backup battery for the flush is not included, so a power outage could render the toilet inoperable unless you address that separately. For a full-featured smart experience, this is a top contender.

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The CANEST FC-001P brings a heated bidet seat, warm air dryer, and self-cleaning nozzle into a package that costs significantly less than comparable smart toilets. The dual-flush system offers 1.1 and 1.6 GPF options, and the built-in pump allows it to flush effectively even under low water pressure conditions. The 1000-gram MaP score confirms that the flush is as capable as more expensive models.

Foot sensor activation lets you flush without touching the toilet, which is a practical hygiene upgrade. The wireless remote controls water temperature, spray position, and dryer settings, and the LED display shows selected functions. The nightlight illuminates the bowl area without flooding the entire bathroom with light.

This model (FC-001P) does not include automatic lid opening or foot sensor lid opening — those features are reserved for the more expensive FC-001. The seat is polypropylene, which feels less premium than the ceramic experience of a standard toilet. The unit needs a GFCI outlet nearby, and the installation instructions can be unclear for first-time smart toilet buyers.

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The AKNIRL OT-001 is a one-piece toilet that measures just 28.5 inches deep, making it one of the more compact one-piece models on the market without sacrificing an elongated bowl. The siphon jet flush system, paired with a 1000-gram MAP score, clears waste efficiently despite the smaller footprint. The 1.1/1.6 GPF dual-flush gives users the option to conserve water on liquid waste.

The seamless one-piece ceramic body eliminates the tank-to-bowl joint, which is a common area for dust and grime accumulation. The included soft-close seat is made of plastic but operates quietly and securely. The 17.3-inch seat height meets ADA guidelines, and the bowl shape provides sufficient legroom for most adults.

Some users find that the flush buttons are positioned on the top of the tank, which can be slightly awkward to reach compared to a side-mounted lever. The included wax ring and bolts are basic, and some buyers prefer to supply their own higher-quality hardware. For a modern, space-saving design at a mid-range price, this toilet delivers strong performance.

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The HOROW T0338W is engineered for small bathrooms with a depth of just 26.6 inches, yet it still provides an elongated bowl and a 17.3-inch ADA-compliant seat height. The one-piece design is easy to wipe down, and the rounded edges give it a clean, modern look. The dual-flush system uses 1.1 or 1.6 GPF, and the fully glazed 2-inch trapway supports smooth waste passage.

The soft-close seat is included and attached with screw-fixed brackets that keep it secure during use. The tank has large side access openings that make mounting to the floor flange simpler than many competing models. HOROW offers both 10-inch and 12-inch rough-in versions, so you can order the exact fit your bathroom requires.

Some users note that the plastic seat cover around the chrome flush buttons feels flimsy and can be damaged by harsh cleaners. The short tank height means the water supply line connection can be tight if your wall stub-out is low. For a compact one-piece that saves floor space without compromising bowl length, this is a solid choice.

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The HOMLYLINK offers a 20-inch seat height — roughly 3 inches taller than a standard ADA toilet — making it one of the tallest residential models available. This is particularly helpful for seniors, tall individuals, and post-surgery patients who need to minimize knee bend when sitting or standing. The two-piece design includes a round bowl and a compact footprint of 27 inches deep.

The 360° jet siphon flush uses hidden water holes around the rim to create a swirling action that cleans the bowl surface. The 1.1/1.6 GPF dual-flush system provides water-saving options without sacrificing the force needed to clear solid waste. The included soft-close seat is made of polypropylene and is detachable for easy cleaning.

Some buyers report confusion over whether the bowl is round or elongated; the listing imagery can be misleading, and the product ships with a round bowl. The third-party seller handled returns poorly in some cases, with high return shipping costs being a major complaint. For buyers who need extreme seat height and are comfortable with a round bowl, this works well.

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The HOROW HR-R17D is a two-piece round-front toilet that combines a 17-inch ADA seat height with a dual-flush system (1.1/1.6 GPF). The 360° siphon flush and a 1000-gram MAP rating ensure that even the half-flush clears solid waste reliably. The compact round bowl makes this a good fit for small guest bathrooms or Powder rooms where space is tight.

The chair-height design reduces knee and back strain for seniors and taller users, despite the compact bowl shape. The included soft-close PP seat prevents slamming, and the dense glazed ceramic surface resists staining. All installation hardware — wax ring, T-bolts, caps — is included, so there are no hidden trips to the hardware store.

The plastic seat feels less comfortable than higher-end options, and some users replace it with a wooden or enameled seat for a more solid feel. The round shape minimizes legroom, so taller adults may find the elongated models more comfortable. For a budget-friendly ADA toilet with a strong flush, this HOROW delivers excellent value.