Gerber Plumbing One-Piece Toilets
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Gerber Maxwell Two-Piece Round-Front 1.6 GPF Toilet
Gerber Viper Two-Piece Compact Elongated 1.28 GPF Toilet
Gerber Wicker Park One-Piece Elongated 1.28 GPF Designer Toilet
Gerber Plumbing One-Piece Toilets: buyer's guide
Gerber Plumbing offers 4 one-piece toilets toilets models in the lineup we track. This page is the Gerber Plumbing-specific cut of the broader One-Piece Toilets toilets category — same product class, narrowed to the Gerber Plumbing catalog only.
About Gerber Plumbing
Gerber Plumbing Fixtures (Lincolnshire, Illinois — a subsidiary of Globe Union Industrial since 2007) has supplied US tract-builder bathrooms since 1932. Lines include Maxwell, Viper, Avalanche, Allerton, and Wicker Park. Gerber's niche is the entry-to-mid commercial spec range: 1.28 GPF or 1.6 GPF gravity toilets, ADA chair-height available throughout, and a parts supply chain that plumbers actually keep in their truck for flush-valve and fill-valve rebuilds.
For the complete Gerber Plumbing lineup across all sub-types and capacities, see the Gerber Plumbing Toilets hub.
Gerber Plumbing One-Piece Toilets models we track
- Gerber Avalanche Two-Piece Elongated 1.28 GPF Comfort Height Toilet (21-808) — Gerber Avalanche — the brand's mainstream WaterSense flagship. Commercial-residential bridge build at $210-$290 with best-in-class plumber-channel reputation.
- Gerber Maxwell Two-Piece Round-Front 1.6 GPF Toilet (21-712) — Gerber Maxwell — 1.6 GPF round-front for pre-1980 housing replacement. Commercial-grade evacuation in legacy form factor.
- Gerber Viper Two-Piece Compact Elongated 1.28 GPF Toilet (21-014) — Gerber Viper — compact-elongated bowl with ViPER flush at sub-$250. Tight-bathroom WaterSense Comfort Height with commercial-grade evacuation.
- Gerber Wicker Park One-Piece Elongated 1.28 GPF Designer Toilet (21-318) — Gerber Wicker Park — premium one-piece designer toilet with skirted-trapway styling. Gerber's lone designer SKU at $340-$460.
Other One-Piece Toilets toilets brands
If you're cross-shopping one-piece toilets toilets beyond Gerber Plumbing, the following brands also ship in this category:
- Kohler One-Piece Toilets
- TOTO One-Piece Toilets
- American Standard One-Piece Toilets
- Niagara One-Piece Toilets
- Eljer One-Piece Toilets
- Swiss Madison One-Piece Toilets
- Woodbridge One-Piece Toilets
- Delta One-Piece Toilets
About One-Piece Toilets toilets
A one-piece toilet is a single porcelain casting — tank and bowl molded together with no seam between them. It's the cleaner-looking, easier-to-maintain alternative to the standard two-piece, but the install logistics and price-to-performance ratio matter when you decide.
- No bolt-down tank gasket to fail — the most common "tank-to-bowl leak" mode doesn't exist on a one-piece because there's no joint.
- Easier to clean — no seam, no bolt caps, no gasket grime. A wipe of the back of the bowl is faster than maneuvering a rag around tank bolts.
- Lower profile — most one-piece designs are noticeably shorter overall (24–27" tall vs 30–32" for a two-piece), which works in small bathrooms with wi...
For the complete one-piece toilets buyer's guide (all brands, full comparison framework), see the One-Piece Toilets category hub.
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