A tank, a media bed, and a valve with six or seven positions · review
STEINBACH Active Balls+ review
A filter-ball system publishing two flow figures and two limits nobody else states: a maximum water temperature of 35 °C, a salt tolerance of 5 g/l — and that the pump is not self-priming.
The bottom line The specialist. A salt tolerance, a temperature limit and an explicit statement that the pump is not self-priming are three published constraints, and constraints are what let a system be matched to a pool rather than bought on a headline. Two hundred watts is the lightest draw here for 3 900 l/h of circulation. It is also the smallest system on the shelf, and the 300 g of balls is a token.
On the maker’s own page
A filter system with a circulation rate of 3 900 l/h and a pump output of
4 500 l/h, at a maximum of 200 W on 220–240 V. It is stated for pools of up to
about 19 000 litres, usable to a maximum water temperature of 35 °C, and
suitable for salt water to a salinity of 5 g/l. The pump is stated as not
self-priming.
The seven-way valve has an adjusting lever and a pressure gauge. About 300 g of
Filter Balls are supplied, and the maker states the system and the balls are
matched to each other. It connects to all common above-ground pools with a hose
connection.
Three constraints, all published
Not self-priming. Thirty-five degrees. Five grams per litre.
Constraints are more useful than capabilities, because they decide whether a
product suits a situation. Eight other systems in this family publish none of
these three.
The priming one is in the title, which is where it belongs: it fixes where the
system can stand before any other question is worth asking.
The salt figure, and what it is for
A salt pool holds its water at a target salinity — commonly 3 to 5 g/l — and
the filter, the valve, the hoses and the pump all live in it.
A system stating 5 g/l has answered whether it can share a circuit with a
chlorinator. The other eight leave it to the tank material and to hope.
Two flow figures again
Circulation 3 900 l/h, pump 4 500 l/h. The difference is the system itself.
Three listings in this family publish both numbers, and every one of them is
more honest for it: a pump output is what the motor does, a circulation rate is
what the pool gets.
Availability
The German, French, Italian and Spanish Amazon stores sat between 145 € and 190 € at the single check this page is built on.
The British Amazon store stocks it as well, in local currency, which the euro range above deliberately leaves aside.
The American Amazon catalogue holds the reference with no seller standing behind it.
These figures are what Keepa gave back the day this page was last written. Stock and prices shift without warning.
Prices quoted in this text were read on 21 September 2026. The live price is at the top of the page.
Declared figures, and the gaps between them
Strengths
A stated salt tolerance of 5 g/l, which matters if a chlorinator is in the circuit
A maximum water temperature of 35 °C published — nobody else here states one
Two flow figures, circulation and pump output
The lowest power draw in this family at a maximum of 200 W
Compromises
Not self-priming, stated in the title — so the siting relative to the water line is fixed
About 300 g of filter balls is a starting quantity rather than a charge
No tank diameter, no media capacity and no hose size published
Specifications
Flow rate
Circulation 3 900 l/h; pump output 4 500 l/h
Turnover against volume
Not published as a turnover — stated for pools of up to about 19 000 l
Tank diameter
Not published
Media charge
About 300 g of filter balls supplied
Media type
Filter Balls, stated to work together with this system
Valve positions
Seven, with an adjusting lever and a pressure gauge
Pump power
Maximum 200 W, at 220–240 V / 50 Hz
Timer
Not published
Hose size
Not published as a diameter — stated connectable to all common above-ground pools with a hose connection
Amazon reference
B079LCPVQ3 (one reference across 6 Amazon marketplaces)
EAN
9008748403863
The questions this one raises
What does “not self-priming” mean for me?
That the pump cannot lift water up to itself and has to sit at or below the pool’s water line. It is published in the title rather than buried, which is the right place for it — it decides where the system can physically go before anything else is considered.
Why is a salt figure useful?
Because a salt pool runs at a target salinity its chlorinator publishes, commonly 3 to 5 g/l, and everything downstream lives in it. A filter stating 5 g/l has answered whether the two can share a circuit. It is the only one in this family to publish a figure.
Is 300 g of balls enough?
It is what the maker supplies and it is a starting quantity. Two systems here supply 800 g and 1 200 g. Filter balls are light and a charge is small, but 300 g is the least in this family and the page treats the medium as a purchase to plan for.
Who this one is for
A salt pool up to 19 000 litres where the system can sit below the water line
A reference exists on these Amazon stores: France, Germany, Italy, Spain, United Kingdom, United States. Listed is not the same as in stock — availability changes daily.
Details checked on September 21, 2026.
Sources
Specifications: manufacturer sheet and Amazon product page. Prices and availability: Keepa. No product on this site has been physically tested.
The only filter system on this shelf that publishes a noise level with a distance — 60 to 65 dB(A) at one metre — alongside 10 200 l/h from a 400 W pump and 800 g of filter balls.
Best for: A system sited near a terrace, where the decibel figure is the deciding one
6 056 l/h pump, 4 920 l/h through-flow, 38.5 cm tank, 36 kg sand
The listing that states its media requirement in full — 36 kg of #20 quartz sand or 1 000 g of filter balls, neither included — alongside two flow figures, a 38.5 cm tank and both hoses in the box.
Best for: A first sand system, where knowing exactly what else to order is worth more than a headline flow
A 250 W system publishing both ends of its curve — 9 000 l/h and a maximum head of 7.5 m — with a seven-position valve, a pressure gauge, IPX5 and adapters for both hose sizes.
Best for: A mid-sized pool where knowing the head before ordering matters