Horow HWMT-8819 Square Modern One-Piece Dual-Flush Toilet

Model HWMT-8819
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Glaze
Standard vitreous china
Design
One-piece elongated with fully-skirted trapway + ANGULAR SQUARE edges on tank/bowl/base
Map Score
800
Bowl Shape
Elongated 18.5"
Flush Type
Dual-flush cartridge mechanism
Watersense
1

Horow HWMT-8819 Square Modern One-Piece Dual-Flush Toilet Review

The Horow HWMT-8819 positioning — angular contemporary aesthetic at Amazon value tier

The Horow HWMT-8819 is Horow\'s angular square-edge variant in the one-piece skirted designer category. Direct competitor to Woodbridge T-0019 Square ($380-$520), DeerValley DV-1F52877 Square ($360-$480), and other angular contemporary one-piece toilets on Amazon. At $380-$540 with bundled SoftClose square-edge seat + WaterSense Most Efficient certification.

The HWMT-8819\'s positioning: angular square-edge contemporary aesthetic at the Amazon value tier for modern architectural bathrooms. For contemporary apartment, urban condo, or modern residential bathroom designs where angular geometry is the design language (matte black faucets, square hardware, flat-front vanities), the HWMT-8819 provides the angular toilet match at Amazon channel pricing.

Angular HWMT-8819 vs rounded HWMT-8835 — choosing the aesthetic

Aesthetic dimensionHWMT-8835 (rounded)HWMT-8819 Square (angular)
Design languageModern Euro (rounded curves)Contemporary architectural (angular 90° edges)
Tank edgesCurved/roundedSquare edges
Bowl outlineSmooth elongated curvesAngular elongated with square outline
Skirted baseCurved transitionSquare skirted base
Best for bathroom styleModern Euro, transitional, mainstream designerContemporary architectural, urban modern, angular hardware aesthetic
Price range$340-$480$380-$540

What the HWMT-8819 delivers

  • Angular square-edge one-piece silhouette
  • Fully skirted-trapway with square base
  • Dual-flush 1.28/0.8 GPF — effective 1.06 (WaterSense Most Efficient)
  • Full Comfort Height 17.0" + elongated bowl 18.5"
  • BUNDLED Horow SoftClose square-edge seat
  • MaP 800g bulk-waste evacuation
  • Angular slim chrome dual-flush button housing
  • 5-year porcelain warranty

HWMT-8819 install requirements

  • Floor flange MUST be at or below floor level for skirted base seating
  • Floor must be flat — angular base highlights floor imperfections more than rounded
  • Two-person lift REQUIRED — ~95 lbs one-piece
  • NEVER twist during placement
  • Caulk between square base and floor may be needed for visual finish (square edges show gaps more visibly than rounded)
  • Tile pattern alignment matters more for angular base — coordinate during install
  • Wall clearance: angular tank edges may visually highlight gaps between toilet back and wall

HWMT-8819 vs angular contemporary competition

CompetitorComparison
Woodbridge T-0019 Square ($380-$520, bundled seat)Direct competitor — virtually identical product profile. Both angular square modern one-piece dual-flush with bundled SoftClose seat. Decision: Amazon review patterns + color availability + pricing fluctuations week-to-week.
DeerValley DV-1F52877 Square ($360-$480, bundled seat)Direct competitor at slightly lower price. HWMT-8819 has comparable product profile.
Duravit Vero Wall-Hung ($1,180-$1,580 + carrier)Duravit Vero is premium European angular wall-hung. HWMT-8819 is angular floor-mount at $640-$1,180 less. Different aesthetic tier + install architecture.
Kohler Numi 2.0 ($7,800-$9,800 with matte black custom option)Kohler Numi is ultra-premium ambient-lit smart toilet. HWMT-8819 is $7,260-$9,420 less without ultra-premium smart features but with comparable angular contemporary aesthetic.

The verdict

Buy HWMT-8819 if:

  • Contemporary architectural bathroom design with angular geometry priority
  • Slightly lower entry price than Woodbridge T-0019 Square matters
  • Amazon channel shopping with bundled square-edge SoftClose seat
  • Dual-flush water savings + utility rebate eligibility
  • 5-7 year service life acceptable

Skip and choose Woodbridge T-0019 Square if:

  • Higher Amazon review volume gives stronger purchase confidence
  • Matte Black color variant is needed (T-0019 Square has matte black option; HWMT-8819 typically White only)

Skip and choose Duravit Vero Wall-Hung if:

  • Premium hospitality or high-end residential install where Duravit brand resale value matters
  • Wall-hung architecture is preferred
  • $640-$1,180 premium for premium European engineering is justifiable

Warranty

Horow HWMT-8819 warranty: 5 years on porcelain (original purchaser), 1 year on tank trim including dual-flush cartridge, 1 year on bundled SoftClose square-edge seat.

Pricing reality (2026)

Horow HWMT-8819 (White, with bundled SoftClose square seat): $380-$480 at Amazon, Wayfair. Build.com: $400-$500. Net price after WaterSense Most Efficient utility rebate: $80-$380.

Frequently Asked Questions

  • Will this fit my bathroom? Standard 12-inch rough-in fits most US homes built after 1970. Measure from the finished wall (not stud) to the center of the closet flange before ordering. For unusual rough-ins (10" or 14") or non-standard floor depths, verify dimensions against the product spec sheet before ordering.
  • How long does installation take? Typical installation runs 1-2 hours for an experienced installer. Add 30-60 minutes if the closet flange needs replacement or repair, and 1-2 hours if the existing supply line stop valve needs to be replaced.
  • Is the toilet seat included? Some configurations include a soft-close seat; others sell it separately for $20-$60. Check the SKU listing before purchase to confirm.
  • How much will this save vs. my existing toilet? At 1.28 GPF, this one-piece toilet uses meaningfully less water than older designs. Replacing a pre-1992 3.5 GPF toilet typically saves $130-$180 per year in water utility costs, depending on local water rates and household flush volume — payback on the toilet purchase price within 2-4 years is realistic for most households.
  • What's the realistic service life? Expect 12-15 years typical for the vitreous china body under normal residential use. Internal flush components (fill valve, flush valve, flapper) typically need replacement around year 7-10 — these are universal hardware-store parts costing $15-$45 total.
  • Can I install this myself? DIY installation is feasible but requires a second person for the heavy lift (~85-100 lbs). If you're working alone or have a tight bathroom doorway, a plumber install ($150-$350) is the safer option.
  • What's the return policy if it doesn't work for my space? Most retailers accept unused toilet returns within 30-90 days (Home Depot 90, Amazon 30, specialty plumbing 30). Installed toilets are NOT returnable — measure twice, install once.

Step-by-Step Installation Overview

  1. Turn off the water supply at the toilet stop valve (the small valve behind/beside the toilet). Flush the tank to drain residual water, then sponge out any water remaining in the tank and bowl.
  2. Disconnect the supply line from the bottom of the tank. Have a small bucket and towel ready for any drips.
  3. Remove the old toilet: unscrew the two closet flange bolts at the base, rock the toilet gently side-to-side to break the wax ring seal, and lift it off the flange. Have a second person help with the lift — the bowl alone weighs 50-90 lbs.
  4. Clean the closet flange thoroughly. Scrape off old wax residue with a putty knife. If the flange is cracked or below the finished floor surface, replace it before proceeding (flange replacement adds ~$25 in parts and 30-60 minutes of labor).
  5. Install new closet flange bolts in the flange slots (most kits include these; verify before starting). Place the new wax ring on top of the flange (or on the bottom of the new bowl, depending on installer preference).
  6. Set the new bowl over the flange, aligning the bolts through the bowl mounting holes. Press down firmly with even pressure to seat the wax ring. Don't twist or rock the bowl after seating — that breaks the seal.
  7. Tighten the closet flange bolts alternately (a few turns on each side, then back to the other) until the bowl is firmly seated. Don't over-tighten — porcelain cracks from excessive bolt torque.
  8. Connect the supply line to the bottom of the tank. Turn on the water supply, let the tank fill, and test the flush. Check all connections for leaks.
  9. Install the toilet seat (if not pre-installed) by inserting the seat bolts through the bowl mounting holes and tightening the nuts from underneath.
  10. Final leak check: flush several times, run a tissue paper test around the base for any seepage, and verify the toilet sits firmly without rocking.

Tools you'll need: adjustable wrench, channel-lock pliers, putty knife, sponge, small bucket, towels, and a level. If you don't have these, expect to spend $40-$60 at a hardware store on a basic install kit.

10-Year Total Cost of Ownership Estimate

  • Initial purchase + installation supplies: typical $15-$30 in wax ring, supply line, and flange bolts on top of the toilet price.
  • Plumber labor (if not DIY): $150-$350 for standard floor-mount install, $250-$500 for smart toilet, $1,000-$2,000 for wall-hung.
  • Replacement seat at year 6-8: $25-$50 for a Bemis or branded replacement.
  • Replacement flush internals at year 7-10: $15-$45 total in parts (fill valve, flapper) — universal Fluidmaster/Korky parts at any hardware store.
  • Water utility cost (1.28 GPF average, 5,000 flushes/year): $400-$600 over 10 years depending on local water rates.
  • Annual savings vs. replacing a pre-1992 3.5 GPF toilet: $130-$180/year ≈ $1,300-$1,800 over 10 years — frequently exceeding the entire toilet purchase + install cost.

Warranty Registration and Care Best Practices

Register this one-piece toilet with Horow within 30 days of purchase to ensure warranty coverage — most brands require online registration plus original receipt for any future warranty claim. Save the receipt as a PDF and email it to yourself for cloud backup; physical receipts fade and get lost. Photograph the model number sticker (typically inside the tank or under the tank lid for one-piece designs) as part of your warranty documentation.

Common warranty exclusions across all toilet brands:

  • Impact damage from dropped tools or items falling on the bowl/tank lid
  • Freeze damage in unheated vacation properties or unheated bathrooms in cold climates
  • Installation damage from over-tightened bolts (cracks at the flange mount), uneven floors causing rocking, or missing wax ring seals
  • Damage from in-tank cleaning tablets (these chemically degrade rubber flapper seals and stain the porcelain)
  • Hard water staining (cosmetic, not structural)
  • Cosmetic scratches from abrasive cleaning products (especially on matte finishes)

Routine cleaning best practices: Use standard porcelain bowl cleaners (Lysol, Clorox, Soft Scrub with Bleach) for the bowl interior. Microfiber + mild dish soap for the exterior, lid, and seat. Avoid steel wool, abrasive scrub pads, and powdered scrub cleaners (Comet, Ajax) that scratch the glaze over years of use. For hard water mineral deposits, apply CLR or Lime-Away with a 10-15 minute dwell time, scrub with a bowl brush, then flush — repeat for stubborn buildup. Wipe water spots on the rim and seat hinge promptly to prevent permanent mineral etching, especially on matte black or matte gray finishes where mineral staining shows visibly faster than on glossy white.

If a warranty claim becomes necessary, contact Horow customer service with: photographs of the defect from multiple angles, the model and serial number, your purchase receipt, and the installation date. Expect 5-10 business days for initial review and 15-30 days for claim resolution if approved.

Pros
  • Angular square-edge aesthetic for contemporary architectural bathrooms
  • One-piece skirted-trapway with square modern edges
  • Dual-flush 1.28/0.8 GPF (WaterSense Most Efficient)
  • BUNDLED Horow SoftClose square-edge seat
  • Full Comfort Height 17.0" + elongated bowl 18.5"
  • Direct competitor to Woodbridge T-0019 Square at slightly lower entry price
  • Top-tier utility rebate eligibility
  • Amazon channel availability
Cons
  • Angular aesthetic doesn't match traditional or transitional bathrooms
  • Heavy install (~95 lbs one-piece, two-person REQUIRED)
  • Skirted-trapway limits floor flange service access
  • Sharp angular edges may be less ergonomic for some users
  • China-sourced manufacturing
  • 5-year porcelain warranty
  • Service life 7-12 years
  • Square-edge bundled seat replacement requires specific compatible seat dimension

Full Specifications

Brand
Horow
Model Number
HWMT-8819
Glaze
Standard vitreous china
Design
One-piece elongated with fully-skirted trapway + ANGULAR SQUARE edges on tank/bowl/base
Map Score
800
Bowl Shape
Elongated 18.5"
Flush Type
Dual-flush cartridge mechanism
Watersense
1
Ada Compliant
1
Effective Gpf
1.06
Height Inches
17
Includes Seat
1
Warranty Years
5
Rough In Inches
12
Gallons Per Flush
1.28
Warranty Porcelain
5-year (original purchaser)
Gallons Per Flush Half
0.8
Watersense Most Efficient
1

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