Lift height and run length trade against each other
A macerator lets you put a toilet where the drain does not go, and it is the one appliance in this catalog that will flood a room when it is used outside its stated limits. The two headline figures trade against each other: makers publish a maximum vertical lift and a maximum horizontal run, and you cannot have both at once — the usual rule of thumb published by the manufacturers is that every meter of rise costs several meters of run. Read their table, not the headline. The second decision is how many inlets: a unit behind a toilet may also need to take a sink, a shower, or a washing machine, and each addition has its own maximum inlet temperature, typically far lower than a dishwasher discharges. Nothing here replaces the installation instructions, and the wiring is subject to your country's rules for damp rooms. We compare stated vertical lift, stated horizontal run, number and size of inlets, maximum inlet temperature, discharge diameter, and stated noise level.
Macerator pump · 0.7 HP, 500 W · 29 GPM · 26 ft lift · IPX8 oil-filled motor, water to 167 °F
A 500 W macerator pump with 29 GPM flow, 26 ft of lift and four inlets, with an IPX8 copper motor.
Best for: A basement powder room close to the stack, where 26 feet of lift is ample and nothing has to be signed off
≈ $110
Residential Sanishower drain pump, compact enough to fit underneath a raised shower base, featuring a valve that prevents waste from flowing back into the unit; the maker describes its above-floor technology as allowing sanitary installations anywhere given only a water supply and electricity
A compact residential shower drain pump with a backflow valve, for fitting under a raised shower base.
Best for: A shower in a place with no drain below it, where the space under the base is the binding constraint
≈ $404
750 W macerator · copper motor · 36 ft vertical lift, 360 ft horizontal discharge
A 750 W macerator pump with 36 ft of lift or 360 ft of horizontal run and a 360° shredding structure.
Best for: A bathroom a long way from the stack — a cabin, a garage, the far end of a basement
≈ $249
Macerator pump · 1.2 HP, 900 W · 48 GPM · 40 ft lift · PCB delay to reduce startups
A 900 W macerator pump with 48 GPM flow, 40 ft of lift, a startup delay circuit and four inlets.
Best for: A basement bathroom that has to lift a long way up — the strongest duty on this shelf for $129.90
≈ $130
Sewage macerator · 800 W · 52.8 gpm (200 LPM) (12,000 L/h) · 32.8 ft lift · water-electric separation
An 800 W macerator pump with a built-in check valve, a hair-reducing bottom blade and a PP housing.
Best for: A basement bathroom with a shower in it — the check valve and the hair blade are the two right answers
≈ $122
SFA Saniflo Saniplus dual-purpose macerating pump for full-bathroom applications, handling both black and gray water systems and supporting installations up to 15 feet vertically or 150 feet horizontally; hardened stainless steel blades, certified to CSA (IPC, NSPC) and IAPMO (UPC), with noise-reducing vibration absorbers; installed behind the toilet with fixtures connected and discharge routed to the main drain, with regular leak checks and routine cleaning advised; a 4 year warranty, made in France, with US phone assistance and nationwide professional training, and recognition by EcoVadis
A dual-purpose macerating pump for a full bathroom, CSA and IAPMO certified, with a four-year warranty.
Best for: A permitted installation — a bathroom that has to be inspected, sold with the house, or insured
≈ $977
Stated vertical lift is a manufacturer test figure, measured without a simultaneous horizontal run.
Published inlets decide what can be connected: toilet alone, sink, shower.
It is a manufacturer test figure, with no simultaneous horizontal run. This site reports it as it stands.
No: the two stated figures are measured separately. A mixed run reduces each of them.
Published inlets say so. They describe the tees the manufacturer provides.
The published maximum inlet temperature specifies it. It counts for a shower or a washing machine.
Stated noise level is a manufacturer figure. This site reports it without measurement.
The published diameter must match the intended pipework.
This site publishes unit specifications and gives no usage instruction.
This site publishes stated specifications and describes no installation.
Vertical lift and horizontal run are two separate test figures, inlets decide what connects, and maximum inlet temperature bounds what the unit accepts.
There is no table here, and the reason is in the listings. Enough of these 6 products name the same rows — discharge diameter, inlets, maximum inlet temperature — for a column to qualify, and too few publish a figure in them: the column would compare blanks rather than models. Each product page says what its own maker published.
Specifications: manufacturer sheets for bathroom fittings and the matching Amazon product pages. Prices and availability: Keepa.
Most recent revision in this category: October 29, 2026.
Prices quoted in these summaries are dated readings. The live price is shown next to each product.
