Zurn Z5685 Hybrid Sensor-Ready Commercial Toilet 1.28/1.6 GPF

The Zurn Z5685 positioning — sensor-ready commercial

The Zurn Z5685 is a commercial flushometer toilet bowl specifically engineered for integration with Zurn's Z6000-WS series sensor-activated flushometers. The bowl geometry, top spud configuration, and sensor mounting position are optimized for Zurn's hands-free commercial restroom standard. At $380-$580 (bowl only — sensor flushometer $260-$380 separately), the Z5685 is the dedicated SKU for facilities adopting sensor-activated flush standards.

The Z5685 supports the post-COVID-19 commercial restroom trend toward hands-free fixtures. The sensor activation eliminates manual handle touch — reducing surface-to-user transmission concerns in high-traffic restrooms while also eliminating manual flush mechanism wear (one of the most common service items in heavy-traffic commercial restrooms).

The sensor flushometer ecosystem

• Zurn Z6000-WS1 (battery-powered) — 4 AA batteries, typical 2-3 year battery life, no electrical install required ($260-$340)
• Zurn Z6000-WS-AC (hardwired) — 24V AC connection required, no battery service ($300-$380)
• Zurn EcoVantage Connected — wireless monitoring + flush analytics for large facilities ($380-$520)

Sensor flushometers automatically trigger flush when user departs the fixture (typically 5-7 second delay after user steps away). Manual override button is rear-mounted for users who want to flush immediately or whose clothing prevents automatic trigger detection.

What the Z5685 delivers

• 1.5" top spud — sensor flushometer compatible
• WaterSense 1.28 GPF (or 1.6 GPF older-building variant)
• MaP 1000g
• ADA-compliant 17" height
• Sensor mounting clearance built into bowl geometry — sensor positioned 16-18" above seat level for optimal user detection
• Commercial-grade vitreous china
• 5-year warranty

The Z5685 variant matrix

Where sensor flushometers improve commercial operations

• Reduced touch-surface transmission concerns — particularly relevant post-COVID for healthcare, schools, food service
• Elimination of manual flush handle wear — handles are the #1 service item in commercial restrooms (3-5 year wear life). Sensor activation extends fixture service intervals 5-10 years.
• Consistent flush behavior — users can't "under-flush" by partial handle activation. Sensor delivers full 1.28 GPF every cycle.
• Lower bowl staining over time — consistent full flush prevents the streak-staining typical of partially-flushed bowls.
• Better facility cleanliness metrics — restroom auditing programs show 15-25% improvement in cleanliness scores with sensor flushometer installations.

Where sensor flushometers add complexity

• Battery replacement service — every 2-3 years, facility maintenance must replace batteries in each fixture. Multi-unit replacement programs are standard.
• False triggering — loose-fitting clothing (skirts, robes, lab coats) can trigger early flush. Modern Zurn sensors have improved this but not eliminated it.
• Sensor failure modes — failed sensor means user must use manual override button (rear-mounted). Failed sensors are typically replaced as a complete flushometer assembly ($260-$380).
• Electrical install requirement (hardwired variants) — 24V AC to each fixture requires electrical contractor + facility wiring infrastructure.

The verdict (for commercial facility specifiers)

Specify Z5685 if:

• New commercial bathroom build adopting hands-free sensor standard
• Healthcare, food service, or daycare where touch-surface reduction is operationally meaningful
• Heavy-traffic facility (200+ daily flushes per fixture) where eliminating handle wear extends service intervals
• High-end commercial (hotel, corporate HQ) where guest experience benefits from hands-free
• Already standardized on Zurn Z6000-WS sensor flushometer ecosystem

Skip and choose Z5675 (manual flushometer) if:

• Standard commercial restroom without operational need for hands-free
• Budget-constrained — sensor adds $100-$140 over manual
• Battery service infrastructure not in place
• Low-traffic facility where manual handle wear isn't a service driver

Skip and choose Eljer Titan Pro if:

• Lifetime porcelain warranty justifies the brand switch
• Sensor integration isn't part of the spec

Pricing reality (2026)

Z5685-BWL (White, bowl only): $380-$480 through commercial supply houses. Zurn Z6000-WS1 sensor flushometer: $260-$340. Total installed cost (bowl + sensor flushometer + commercial labor): $850-$1,200 per fixture. Battery replacement program: $4-$6 per fixture every 2-3 years. Hardwired AC variant adds $80-$140 for electrical install per fixture.

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 1.5-2 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 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? Most experienced DIYers can complete installation in 1-2 hours with basic plumbing tools. Hire a licensed plumber if you're uncomfortable with closet flange work, supply line connections, or if your plumbing is older than 1980s and may need flange replacement.
• 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 toilet with Zurn 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 Zurn 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.