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The part that is actually running, not the whole tank · review

Zurn Aquaflush exposed flush valve review

A manual exposed diaphragm urinal flushometer at 1.0 GPF with chloramine-resistant seals.

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What the maker puts in writing

  • Standard 11-1/2 in rough-in and 3/4” top spud; exposed sweat solder kit; polished chrome-plated finish cast wall flange
  • 1.0 gpf urinal flush volume
  • “Clog-resistant triple filter diaphragm; Chemical resistant gaskets and seals for extended service life with lower maintenance costs; Manual ADA compliant handle with no-leak seal technology; 3-year limited warranty”
  • From the description: “a quiet GO BLUE dual-seal diaphragm with a clog-resistant bypass and chloramine-resistant seals for an extended lifespan and lower maintenance costs… a water-saving solution for any commercial retrofit or new construction project”

First: this is not a household part

A flushometer is the exposed chrome valve on a pipe above a commercial urinal or toilet. There is no tank. It takes water straight from the main water supply and meters out one measured flush, which is why a commercial washroom can be used continuously with no refill wait.

It needs a large supply and real flow — more than a house normally has.

And this one is for a urinal: 3/4 inch spud, 11-1/2 inch rough-in, 1.0 gallon per flush.

Two products on this shelf are commercial, this and the Sloan rebuild kit. The other eight go inside a toilet tank. They are not alternatives to each other.

The sweat solder kit, and what it commits you to

Exposed sweat solder kit.

“Sweating” a joint means heating copper pipe and fitting until solder is drawn into the gap. It needs a torch, flux, solder, a dry pipe and the building’s water off.

So this valve is plumbed into copper, not screwed onto a flexible connector — normal for a flushometer, and completely unlike every tank part on this shelf, all of which drop in or screw on.

If soldering water pipe with the supply isolated is not something you do, this is a trade installation and should be priced as one.

Chloramine, named

This is the best specification on this shelf and the only place the word appears.

Most American municipal systems now treat with chloramine rather than free chlorine, and chloramine is harder on rubber. A diaphragm sits in that water permanently, and chemical attack is why flushometers eventually weep or fail to close.

Four listings here claim chemical resistance of some kind — Korky’s chlorine-resistant rubber, Fluidmaster’s silicone, Danco’s chemical-resistant silicone. Zurn names the actual chemical.

Worth reading against the Sloan kit on this shelf, whose diaphragm is described as proprietary natural rubber with no resistance claim attached.

On a valve flushed hundreds of times a day, where a service call costs more than the valve, that is the sentence that pays for itself.

And the triple filter, which prevents the two real failures

A flushometer times its flush by letting a trickle of water through a bypass orifice, and that orifice is very small.

A grain of grit or a flake of scale blocks it, and then one of two things happens: the valve will not close, and runs continuously on water pressure, or it will not open properly, and there is no flush.

A triple filter catches debris before it reaches the bypass, and Zurn describes the bypass as clog-resistant as well.

This is why a $119 commercial valve is not comparable to a $12 flapper. A flapper fails politely — a slow leak into the pan. A flushometer stuck open on water pressure does not.

One point nought gallons, and an ADA handle

1.0 GPF on a urinal is a water-saving specification; older valves were 1.5 or more, and Zurn positions this for retrofit.

ADA compliant handle matters in a commercial building: the handle must be operable without tight grasping, pinching or twisting of the wrist, and that is a code requirement rather than a courtesy. Zurn adds no-leak seal technology at the handle, which is the other place a flushometer weeps.

And a three-year warranty

Which makes Zurn and Fluidmaster the only two makers on this shelf that publish a warranty at all.

Two point seven kilograms of cast and chrome-plated metal, against 91 grams for a flapper. It is a different class of object for a different job, and the only mistake you can make with it is buying it for a house.

Availability

Available at around $119.27 on Amazon.com when we checked on October 29, 2026, for delivery to a US address.

Stock and prices on Amazon.com move without notice; the button above opens the live listing.

Prices quoted in this text were read on October 29, 2026. The live price is at the top of the page.

Strengths, and the catches

Strengths

  • Chloramine-resistant seals, named — which is the chemical that actually attacks rubber in modern municipal water, and only this listing says it
  • A triple-filter diaphragm with a clog-resistant bypass, which is what stops a flushometer sticking open or failing to close
  • An ADA compliant handle and a three-year limited warranty, on the only non-Fluidmaster product here that publishes any warranty

Compromises

  • A sweat solder kit means it is soldered onto copper pipe: this is a plumber’s installation, not a drop-in part
  • For a urinal with an 11-1/2 in rough-in and a 3/4 in top spud — useless in a domestic bathroom
  • A hundred and eighteen dollars, where every tank part on this shelf is under thirty

Specifications

Valve typeA MANUAL URINAL FLUSH VALVE — commercial, 3/4 in, and NOT a tank toilet valve. The handle is ADA compliant with no-leak seal technology, and there is NO SENSOR: this is the manual version. The diaphragm is a clog-resistant triple filter, GO BLUE dual-seal with a clog-resistant bypass, and the seals are stated chemical AND CHLORAMINE resistant — the only chloramine claim on this shelf.
Tank opening diameterNOT APPLICABLE — a urinal valve has no tank. The rough-in is the standard 11-1/2 in, on a 3/4 in top spud.
Adjustable height rangeNOT PUBLISHED.
Inlet connectionAn exposed SWEAT SOLDER kit — soldered to copper pipe, the only soldered connection on this shelf and the only one that needs a torch. A polished chrome-plated cast wall flange covers it.
Inlet positionTop spud, 3/4 in.
Stated flush volumes1.0 GPF. Polished chrome-plated, 6.0 lb (2,722 g) — by far the heaviest item on this shelf — 11 × 10 × 5.98 in (279 × 254 × 152 mm), with a 3-year limited warranty.
Amazon referenceB002G76ACM
EAN0094713133018

The questions we get

What is a sweat solder kit and what does it commit me to?

Soldering. "Sweating" a joint means heating a copper pipe and a fitting until solder flows into the gap by capillary action, and it needs a torch, flux, solder, a dry pipe and an isolated supply. Zurn supplying a sweat solder kit tells you this valve is plumbed into copper, not screwed onto a flexible connector — which is normal for a commercial flushometer and completely unlike every other product on this shelf, all of which drop into a toilet tank or screw to a flush valve. If you are not comfortable soldering water pipe with the building’s supply off, this is a trade installation.

Why is chloramine resistance the specification to notice?

Because chloramine is what most American municipal systems now use, and it is harder on rubber than free chlorine. A diaphragm or a seal sits in that water permanently, and chemical attack is the reason flushometers eventually weep or fail to shut. Four listings on this shelf claim some chemical resistance — Korky chlorine-resistant rubber, Fluidmaster a silicone seal resisting chlorine and hard water, Danco a chemical-resistant silicone seal — but Zurn is the only one that names chloramine. On a valve in a commercial washroom flushed hundreds of times a day, where a service call costs more than the valve, that is the claim that matters.

What does a triple filter diaphragm prevent?

The two commercial washroom failures. A flushometer meters its flush by letting a small amount of water bleed through a bypass orifice, and that orifice is tiny — so a grain of grit or a flake of scale blocks it and the valve either will not close (water running continuously) or will not open properly (no flush). A triple filter traps debris before it reaches the bypass, and Zurn describes the bypass itself as clog-resistant. It is why a $119 commercial valve is not comparable to a $12 flapper: the flapper fails politely, and a stuck-open flushometer on water pressure does not.

Against the closest bathroom fittings on price

Same category, nearby prices, between bathroom fittings. What remains is the specifications every one publishes — half empty, a column is no use.

Model Price Valve typeTank opening diameterAdjustable height rangeInlet connection
Zurn Aquaflush exposed flush valve $119 A MANUAL URINAL FLUSH VALVE — commercial, 3/4 in, and NOT a tank toilet valve. The handle is ADA compliant with no-leak seal technology, and there is NO SENSOR: this is the manual version. The diaphragm is a clog-resistant triple filter, GO BLUE dual-seal with a clog-resistant bypass, and the seals are stated chemical AND CHLORAMINE resistant — the only chloramine claim on this shelf.NOT APPLICABLE — a urinal valve has no tank. The rough-in is the standard 11-1/2 in, on a 3/4 in top spud.NOT PUBLISHED.An exposed SWEAT SOLDER kit — soldered to copper pipe, the only soldered connection on this shelf and the only one that needs a torch. A polished chrome-plated cast wall flange covers it.
Geberit Type 380 fill valve for tank 240.700 $35 Geberit fill valve Type 380 — statedNot stated as a figure — the valve is specified for Geberit surface tank no. 240.700Fill height adjustable by turning the spindle — stated; no range is given3/8 in — stated
Fluidmaster 830V 3 in dual flush valve $29 A DUAL FLUSH valve, sold as an exact replacement, 3 in, with full and half flush adjustable to match the factory settings. Named for Glacier Bay, AquaSource, Project Source and other dual flush toilets, and 2-PIECE ONLY — the maker states it is not compatible with 1-piece toilets.3 in.NOT PUBLISHED, and NO CLEARANCE FIGURE either, where the 3 in Fluidmaster kit on this shelf gives 10 in.NONE — it replaces the outlet valve. Installation is stated as easy, and whether the tank must come off is NOT STATED either way.
Sloan Regal R-1003-A rebuild kit $29 A REPAIR KIT FOR A FLUSHOMETER, not a tank valve at all: an A-38-A diaphragm, a handle repair kit, a V-551-A vacuum breaker kit and a tailpiece O-ring, for Sloan Regal 3.5 GPF manual water closet flushometers. COMMERCIAL, and NOT for a domestic tank toilet.NOT APPLICABLE — a flushometer has no tank. The compatibility reference is clamshell number 33170011, and the maker states that 3317003 and 33170011 are the same item.NOT APPLICABLE.NOT PUBLISHED as a thread. The kit replaces worn or end-of-service-life assemblies, and no tools are stated.

Where the models diverge, in bathroom fittings

  • If price decides: Fluidmaster 830V 3 in dual flush valve, at $29.

The price on Amazon.com

This model is listed on Amazon.com, at ≈ $119 at the last reading. Listed is not the same as in stock: availability changes daily, and the buy box shows the live price.

Details checked on October 29, 2026.

Who buys this one, among bathroom fittings

A commercial washroom retrofit — a 1.0 GPF urinal valve that will not need attention for years

What buyers actually choose

Amazon reports what buyers took in the month before this page was last checked: at least 100.

The figure is a floor, rounded by Amazon, and read through Keepa — it says what buyers picked, not what a maker claims.

Sources

Specifications: the manufacturer sheet for bathroom fittings and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.

How we assess these bathroom fittings

Also on your shortlist, probably

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