What the maker puts in writing
- “Nal, or washing machine and features a valve that prevents waste from flowing back into the unit”
- “The SaniSHOWER is compact enough to fit underneath a raised shower base, giving you greater options when it comes to basement bathroom ideas”
- From the description: “Saniflo is the world leader in the plumbing industry as a result of the above-floor technology used in Saniflo pumps… All you need is water supply and electricity”
First, what it is not
It is not a macerator.
The other five products on this shelf grind solids, because they take a toilet discharge. This is a drain pump for gray water: a shower, a sink, a washing machine. That is why it is smaller, lighter and says nothing about blades.
Which means: if the installation includes a toilet, this is the wrong product. Saniflo’s own Saniplus on this shelf is the one that takes both black and gray water.
And the dimension that is the whole point
Compact enough to fit underneath a raised shower base.
That is a different design problem from everything else here. A macerator sits behind a toilet, where there is a cabinet’s worth of room. A shower pump has to vanish into the void under a tray.
13.5 x 8.9 x 8.31 in (343 x 226 x 211 mm), and 4604 g — the smallest and lightest published figures on this shelf by a clear margin. The VEVORs are 16.5 to 17.3 in (420 to 440 mm) long and six to seven and a half kilograms.
If the constraint is the space under the base, that is the sentence that matters.
The backflow valve matters more here than elsewhere
A valve that prevents waste from flowing back into the unit.
On a macerator behind a toilet, a missing check valve means the pump re-pumps the same waste and the tank smells.
On a shower pump buried under a tiled tray, it means water finding its way back into a unit you cannot see or reach — and a leak there is a floor to be lifted, not a puddle to be mopped.
Two pumps on this shelf publish a backflow valve: this, and VEVOR’s 800 W. The other four do not.
And the above-floor idea, which only Saniflo explains
All you need is water supply and electricity.
That is the reason this entire product category exists, and it is worth stating because no other listing here does.
A conventional bathroom needs a gravity drain, which means a fall to a soil pipe — which in a basement, a loft or a garage means breaking a concrete floor or it cannot be done at all.
A pump lifts the drain instead. So a shower can go where there is no drain below it, and the only trenching required is for a water pipe and a cable.
Now the problem with the page
Two bullets. And the first one begins mid-word:
“Nal, or washing machine and features a valve…”
Something has been cut off before “Nal”. Whatever the fixture list was meant to say, it is not there.
No lift figure. No horizontal run. No flow rate. No motor power. No temperature rating. No certification. No warranty.
A drain pump is specified by how high and how far it must push water, and neither number is on this page. Saniflo publishes both for the Saniplus — 15 feet vertically or 150 feet horizontally — and publishes neither here.
At $403.92, nearly four times the price of a 500 W VEVOR that publishes flow, lift, temperature and inlet diameters, that is the central objection to this listing.
The product is from the company that invented the category and has been installing in America for thirty years. The page tells you almost nothing about it. Ask for the duty curve before you tile over it.
Availability
Available at around $403.92 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.
