Bosch Fontus Review UK (2026)

Buy the Bosch Fontus Gen II if there is no outdoor tap and you will roll 15 litres to the work. This review is only about the Fontus Gen II trolley: bare versus kit, and when to walk away. The class shortlist is the tank page. Which Bosch to buy sits on the Bosch hub.

It is not a lab test. Specs come from Bosch. Street prices come from Amazon, Wickes and Bosch DIY in August 2026.

If you click through and buy, we may earn a commission.

It is a 20 bar tank trolley, not a UniversalAquatak substitute. Fifteen litres, 18V Power For All, a 4 m hose. Fill it at the kitchen mixer and roll it to a front garden that has no outdoor tap. Twenty bar will rinse a bike, furniture and a careful small car if you foam first. It will not strip a mossy patio the way a tap-fed 135 bar Bosch does. Buy it because water is the missing thing. Do not buy it because the carton says Bosch and you already have a tap.

If you have a tap and a 13A socket, start on the Bosch hub. If you have a bucket or a water butt and you will carry water, that is a handheld on the cordless guide. Bikes as a job sit on the bikes page. First-use setup, nozzles and frost drain-down are on how to use a pressure washer.

Quick picks

Specs

	Bare (06008B6102)	Kit (06008B6171)
Model	Bosch Fontus Gen II, tool only	Same trolley. Confirm whether a pack and charger are in the carton
Max pressure	20 bar, low / medium / turbo	Same pump
Flow	About 1.5 to 3.1 L/min (90 to 186 L/h)	Same
Battery	18V Power For All, sold separately. Bosch recommends 2.0Ah or larger	Most street kits include a 2.5Ah pack and charger
Water	15 L built-in tank, or a garden tap. 4 m PVC hose	Same
Nozzle	Pencil, 15° fan, 50° fan, shower. SmartBrush in a typical kit	Same
Weight	6.4 kg without battery on the Bosch DIY sheet. Wickes lists 9.43 kg as sold. About 22 to 25 kg full	Same trolley
Runtime	Bosch claims up to 60 min on 2.5Ah. That is battery time. The tank empties first	Same
Typical UK price, Aug 2026	£179 bare	£198 kit

Prices checked August 2026. Kits and bare tools are different cartons. Confirm whether a battery and charger are in the carton. Shop the live total, not the word Fontus on a tile. Full-tank weights are arithmetic (1 L = 1 kg) added to the published empty figures, not a weighed test on this site.

Who it is for

This is the household Bosch tank trolley. Buy it if most of the list below is true.

• There is no outdoor tap. You will fill the tank at a kitchen mixer or an indoor standpipe and roll the machine to the work.
• The jobs are bikes, garden furniture, boots, windows, and a careful rinse of a small car. You accept a refill on a dirty hatchback.
• You want the water on the trolley. You will not carry a bucket or a jerry can as a second object.
• You already own Bosch 18V Power For All packs, or you will buy the kit so a 2.5Ah pack arrives in the box.
• Twenty bar is enough. You are rinsing, not stripping moss from a terrace.
• You can roll about 22 to 25 kg on wheels. You will drain the tank before the boot.
• You do not already own this trolley. If you do, buy a spare pack, not another Fontus.

That is the buyer the tank page already treats as the everyday tank. The Bosch hub treats it as the no-tap Bosch, not the default household washer. It is not a bike gun. Fifteen litres is a household tank. The bikes page sends that job to a handheld unless you refuse a bucket.

Skip it if

• You have a tap, a 13A socket and a patio or a weekly family car. This trolley is not a quieter UniversalAquatak. Twenty bar will rinse. It will not match 135 bar on stone. Start on the Bosch hub.
• The missing thing is a socket, and you can still reach a tap or a bucket. A siphon handheld is lighter and usually stronger. That class sits on the cordless guide. Not a pick here.
• You already live on Kärcher 18V Battery Power. That is the OC 6-18 on the tank page. Twelve litres, 24 bar, £229.99 bare. Stay on the packs you have.
• Six litres for a muddy bike is all you need. That is the smaller Fontus 18V-6. Official UK page, 20 bar, 4.4 kg. Bosch DIY lists the solo tool at £161.05. Street bare tools have sat around £130 to £143. It is a genuine tank. It is not a household trolley, and we do not currently send you to a live listing for that smaller Fontus.
• You already own Makita LXT and you want 55 bar and 50 litres. That case lives on the tank page. It is not a Fontus with a bigger jug.
• You already own this pump. Add a 2.5Ah or larger Power For All pack. Another Gen II is a duplicate.

Bosch Fontus Gen II

The Bosch tank trolley only if there is no outdoor tap

• Buy: Bosch Fontus Gen II £179 bare, £198 kit
• Part numbers: kit 06008B6171, bare 06008B6102
• Pressure: 20 bar, low / medium / turbo
• Flow: about 1.5 to 3.1 L/min (90 to 186 L/h)
• Battery: 18V Power For All. Most street kits include a 2.5Ah pack and charger. Bosch recommends 2.0Ah or larger
• Water: 15 L built-in tank, or a garden tap. 4 m PVC hose
• Weight: 6.4 kg without battery on the Bosch DIY sheet. Wickes prints 9.43 kg for the unit they sell. Add 15 kg when the tank is full
• Runtime: Bosch claims up to 60 minutes on the 2.5Ah pack. That is battery time, not tank time
• Who it is for: a house with no outdoor tap, a caravan, an allotment, or anyone who wants to fill once at the kitchen sink and roll the machine to the car

This is a trolley that brings its own water, not a shed mains machine. You fill the 15 litre tank indoors, click a wide fan, and rinse from a distance. Twenty bar is still well above a garden hose, which is about 2 to 4 bar. It is enough to lift dried mud from a downtube if you have already brushed the worst of it, and enough for a careful rinse of a small car if you foam first. It is more than you should put into a bike hub, a headset or an e-bike battery bay.

It will not pretend to be a 135 bar UniversalAquatak, and it will not pretend to be a 110 bar K2. Flow tops out around 186 L/h. A UniversalAquatak sits around 410 L/h. Those extra litres rinse shampoo and stone cleaner. This trolley rinses a frame, a set of chairs and a careful car. Shop 20 bar, 15 litres and the wheels. Do not shop a catalogue adjective.

Bare or kit

Buy the bare tool if you already own Bosch 18V Power For All packs. Street bare is £179. Part number 06008B6102. A 2.0Ah pack is the smallest Bosch will recommend. A 2.5Ah pack is the one in a typical kit. A larger pack is the spare if chairs or a car join the job.

Buy the kit if you do not already own the batteries. Most street kits include a 2.5Ah pack and a charger. Street kit is £198. Part number 06008B6171. Confirm what is in the carton. A listing that shows a trolley and no pack is the bare tool. The honest first cost if you have no packs is the kit, not the tile that says £179.

Shop the live total, not the word kit. The buy button on this page is: Check latest price.

Pressure and the nozzle

Four spray patterns sit on the gun: pencil, 15° fan, 50° fan, shower. Fan on the frame, the paint and the furniture. Shower or the widest step for glass, stickers, a saddle and anything with a badge. Low and medium are the useful household steps. Turbo is not a reason to stand closer.

The pencil jet is for stubborn dirt on a surface you will not mind marking. Leave it off a cassette, a chain, a headset, a hub, a bottom bracket, a disc rotor and any e-bike battery bay. The same rule as a dirt blaster on a mains machine. People leave a tight jet clicked on by mistake. That is how grease leaves a drivetrain and water finds a seal.

The SmartBrush is in a typical kit because 20 bar will not shift everything. Use it on wheels and window frames. Leave it off lacquer you care about. A bike is an open frame. Paint on a car is a sealed skin. Both want a wide fan and distance. Stand 30 cm or more from a frame. Further is safer on lacquer. Keep the lance moving. Soap is a low-pressure job: a mitt or a brush, then a fan rinse. Bike and paint notes sit on the bikes page. First-use nozzle order is on the how-to page.

Battery and runtime

The platform is Bosch 18V Power For All. One family across the Bosch DIY garden range, and across other brands in that alliance. That is the reason to buy this trolley if the packs are already on the shelf. It is also the reason to skip it if the packs on the shelf are Kärcher Battery Power or Makita LXT. A bargain tool that needs a new charger and two packs is not a bargain.

Bosch claims up to 60 minutes on the 2.5Ah pack. That is battery time, not tank time. At the higher flow the water is gone in well under ten minutes of trigger time. Fifteen litres at about 3.1 L/min does not last an hour. Foam first, rinse with purpose. A second pack is useful. A second tank of water is the one you will actually need on a car.

Keep the jet off the pack. Close any cover. Do not stand the trolley in a puddle. Use clean water in the tank. Grit wrecks these pumps faster than a short tank will annoy you. Drain before frost. The how-to page has the drain-down habit for any washer you will leave in a shed.

Water: tank or tap

The Fontus carries water. That is the point and the limit. The 15 litre tank is enough for bikes, furniture, boots and a careful rinse of a small car. It is not enough for a dirty family hatchback on one fill. Plan on a refill, or clip the inlet to a tap if one is there. The tank page is honest: you buy the tank for the days there is no tap. You clip a hose on for the days there is.

Use clean water. Fill at the kitchen tap if the water butt is green. Sand in a pump is a new trolley. Fifteen litres is a careful rinse of a small van, not a dirty family hatchback on one fill. A handheld plus a jerry can is still the lighter path if you will carry water anyway.

A tap feed does not turn this into a UniversalAquatak. Pressure and flow stay 20 bar and about 90 to 186 L/h. You only stop walking back to the kitchen. That is useful on a front garden with no outdoor tap. It is not a reason to skip the mains Bosch if the tap and the socket are already there and the Saturday includes chairs and a small car every week.

Weight and daily use

Empty, this is a manageable trolley. Bosch lists 6.4 kg without the battery. Wickes prints 9.43 kg for the unit they sell. Full, add 15 kg of water. A Fontus on a full tank is around 22 to 25 kg on its wheels. The wheels exist for that reason. Drain it before the boot. If you cannot roll 25 kg over a gravel strip, this is the wrong shape for your front garden, however good the tank looks on paper.

Four metres of PVC is reach around a small car if you park at a corner. It is not hose to walk a van. Move the trolley. Do not stretch the hose around a hot exhaust. On a bike in the yard the tank lives next to the work. On a car you will roll it once. On a long path you wanted a mains hose, not a longer Fontus lance.

After the job, run the pump on clean water if the tank has sat. Drain what you can before frost. A tank trolley still holds water in the head and the hose. The how-to page has the drain-down habit. This one is not small enough to live next to a helmet. It lives in the shed. A 1.5 kg gun lives in the boot. That is why the bikes page does not treat Gen II as a bike pick.

Which carton

1. You already own Power For All packs. Bare 06008B6102 at £179. Use 2.0Ah or larger. A 2.5Ah pack is the kit size.
2. You own no 18V Bosch packs, and there is no outdoor tap. Kit 06008B6171 at £198, so a typical 2.5Ah pack and charger arrive together.
3. You already own this trolley. A spare 2.5Ah or larger pack. Not a second Fontus.
4. You have a tap and a socket. Leave this page. Read the Bosch hub and buy the UniversalAquatak 135.
5. You already live on Kärcher 18V. Do not start a second family for three extra litres. Read the tank page and stay on the OC 6-18.
6. You will carry a bucket. Do not pay trolley money. Read the cordless guide.

There is only one Fontus we will send you to. Shop Fontus Gen II. Confirm 15 litres, 20 bar, 18V Power For All and the 4 m hose. Confirm whether a battery is in the box. A listing that shouts a 6 litre Bike Cleaner is the 18V-6, not this trolley, and it has no button on this site. A listing that shouts a higher bar is not this pump.

Not a UniversalAquatak substitute

A tank trolley is for the job where the garden hose through the hall is the thing you are trying to stop. It is not the household washer. Twenty bar and about 186 L/h will not do a green drive. The tank runs out before the slabs do. If the Saturday is cars and a normal patio, and the tap and the socket are there, buy mains. The Bosch hub is the brand shortlist. The UniversalAquatak 135 is the Bosch most UK homes should start with: 135 bar, about 410 L/h, 7 m hose, 7.9 kg, £128 at Wickes against a £184 list.

The OC 6-18 is the other named household trolley. It is not a pick on this page. Twelve litres, 24 bar, £229.99 bare, battery separately around £58, if Kärcher 18V is already on the shelf. Handheld siphon guns are not picks here either. Worx, Ryobi and Greenworks belong on the cordless guide. A Fontus is not a HydroShot with a jug glued on. That comparison is the tank page.

FAQ

Is the Bosch Fontus worth it?

Yes, if there is no outdoor tap and you will roll 15 litres to bikes, furniture and a careful small car. No, if you have a tap and a socket and you will wash a patio. No, if you will carry a bucket anyway. At £179 bare it is the named Bosch tank. The kit at £198 is the first-time buy if you have no Power For All packs. It is still a 20 bar rinse, not a 135 bar wash.

Should I buy the bare tool or the kit?

Bare if the Power For All packs are already on the shelf. Kit if they are not. Street bare is £179. Street kit is £198. Most kits include a 2.5Ah pack and a charger. Shop the contents list and the live total. There is one button on this page for both.

Is 20 bar enough?

For a bike, chairs and a careful rinse, yes, if you foam or brush first. For road film on a weekly family car, or for moss on slabs, no. A garden hose is about 2 to 4 bar, so 20 bar is still a real step up. A UniversalAquatak is 135 bar. An OC 6-18 is 24 bar. Shop the job, not the biggest number on a neighbouring tile.

Can the Fontus wash a car?

Yes, if you treat it as a wash, not a blast. Foam or shampoo, mitt, then a fan rinse. Fifteen litres will get you through the rinse if you are disciplined. It will not get you through foam and rinse and a second pass on the wheels. Refill, or clip the trolley to a tap when you are on the drive. None of that replaces a mains washer for a family that washes every weekend. Paint notes sit on the bikes page. This trolley is still 20 bar.

Can it do a patio?

A small, lightly dirty patch, on a narrow jet, if you accept a slow job and a refill. A green terrace, driveway oil or a full set of slabs wants a mains machine in the 130 bar class. Tank volume is the limit, not just bar. Bosch positions this trolley for cars, bikes, furniture, windows and boots, not for a mossy patio. Do not buy it as a patio washer and hope.

Do I need a tap?

No outdoor tap is why this trolley exists. You need a water source to fill the tank: a kitchen mixer, an indoor tap, a standpipe you will walk to once. A UniversalAquatak without a tap is a box in the kitchen. A Fontus without a fill is a dry motor. If a tap is there on the day, you can clip a hose on. That is a fallback, not a reason to buy this instead of the mains Bosch.

How long does the water last?

At the higher flow, 15 litres is a few minutes of trigger time, not an hour. Bosch’s 60 minute claim is the battery. The tank empties first. Refill is normal. Foam first, rinse second, do not hold the trigger while you stand and look.

Fontus, UniversalAquatak or OC 6-18?

Fontus if the outdoor tap is missing and you want the Bosch tank. UniversalAquatak if you have a tap and a socket. That brand argument stays on the Bosch hub. OC 6-18 if Kärcher 18V is already in the shed. That class argument stays on the tank page. This page will not re-shortlist them.

More reading

The tank class in full is the tank page. Which Bosch to buy sits on the Bosch hub. Handheld siphon guns sit on the cordless guide. Bikes as a job sit on the bikes page. First use and frost drain-down are on how to use a pressure washer.