Zurn Gravity-Flush Toilets
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Zurn Z5685 Hybrid Sensor-Ready Commercial Toilet 1.28/1.6 GPF
Zurn Z5615 Wall-Mount Commercial Flushometer Toilet 1.28 GPF
Zurn Z5675 Floor-Mount Commercial Flushometer Toilet 1.28 GPF
Zurn Gravity-Flush Toilets: buyer's guide
Zurn offers 4 gravity flush toilets models in the lineup we track. This page is the Zurn-specific cut of the broader Gravity-Flush Toilets toilets category — same product class, narrowed to the Zurn catalog only.
About Zurn
Zurn Industries (Milwaukee, Wisconsin, founded 1900) is one of the largest US commercial plumbing brands — the dominant supplier of commercial flush valves (the metal valves on commercial diaphragm-flush toilets), wall-hung toilet carriers, sensor-flush systems, and floor drains across US offices, hotels, schools, and hospitals. The Zurn toilet line is primarily commercial-spec: wall-hung bowls designed to mount on Zurn-supplied steel carriers, with Zurn diaphragm flush valves controlling the flush. Residential Zurn toilet presence is small (the brand doesn't target Home Depot or Lowes channel...
For the complete Zurn lineup across all sub-types and capacities, see the Zurn Toilets hub.
Zurn Gravity-Flush Toilets models we track
- Zurn Z5560 Light-Commercial Two-Piece Tank Toilet 1.28 GPF (Z5560) — Zurn Z5560 — light-commercial gravity-tank toilet for multi-family residential, small office, and rental property. Bridges residential simplicity with commercia...
- Zurn Z5685 Hybrid Sensor-Ready Commercial Toilet 1.28/1.6 GPF (Z5685-BWL) — Zurn Z5685 — hybrid commercial toilet with pre-engineered integration for Zurn Z6000-WS sensor flushometer. Hands-free commercial restroom standard.
- Zurn Z5615 Wall-Mount Commercial Flushometer Toilet 1.28 GPF (Z5615-BWL) — Zurn Z5615 — wall-mount commercial flushometer toilet with rear spud. Enables floor cleaning underneath. For hospitals, food service, and high-cleanliness facil...
- Zurn Z5675 Floor-Mount Commercial Flushometer Toilet 1.28 GPF (Z5675-BWL) — Zurn Z5675 — value-tier commercial flushometer toilet for office/school/retail restrooms. EcoPerformance 1.28 GPF + Zurn Z6000 flushometer integration.
Other Gravity Flush toilets brands
If you're cross-shopping gravity flush toilets beyond Zurn, the following brands also ship in this category:
- Kohler Gravity Flush
- TOTO Gravity Flush
- American Standard Gravity Flush
- Niagara Gravity Flush
- Eljer Gravity Flush
- Swiss Madison Gravity Flush
- Woodbridge Gravity Flush
- Delta Gravity Flush
About Gravity-Flush Toilets toilets
Gravity flush is the default residential toilet mechanism in the US. Water stored in the tank drops into the bowl via gravity (with the help of a flush valve at the bottom) when you press the handle, creating a siphonic flow that empties the bowl through the trapway. It's the engineering used in 95%+ of US residential toilets, including every major brand's volume models.
The flush sequence:
- You press the handle → the trip lever lifts the flapper
- Water rushes from the tank through the now-open flush valve into the bowl
- The water raises the bowl water level above the trapway weir
- Water cascades into the trapway, creating siphonic action that empties the bowl
- Siphon breaks when air re-enters; refill cycle begi...
For the complete gravity flush buyer's guide (all brands, full comparison framework), see the Gravity-Flush Toilets category hub.
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