For me as Kleingärtner been overall a good pressure sprayer.

According Gardena hotline of 823-20 Pressure Sprayer 5 L is identical and identical in facilities for Gardena 822-20 Pressure Sprayer 5 L.
So you can fall select the currently favorable offer.

So far, positive:

- Considering the price at first glance a valent impression.

- After a short period of trial and error or a spacious view of the good manual (German and other languages), the operation is easy to learn and yet also quite convenient and practical.

- Only about 1.5 kg tare weight is relatively easy if you set the weight of my rust caused leaky and discarded 5 liter metal pressure sprayer in relation.

- The level of the liquid in the container is easy to read.

- Must atomize To complete 5 liters you felt little or re-inflation pump. With regard to the pumping effort I was rather surprised. The 5 liter mark as maximum filling you should consider, however, otherwise it will unnecessarily difficult by the lack of volume pumps for pressure build-up (which takes place in the air space).

- With the 3 bar safety valve can be easily and quickly after use of the pressure break down. About the 3 bar pressure I did not previously appear. The pressure built up was sufficiently far for my applications with respect to the Sprühreichweite. A manometer for pressure reading would have been a plus, but I've not really missed.

- With the previously used by me biological sprays water-based pressure sprayer was easy to clean.

For example, solvent-containing liquids of Gardena pressure sprayer manual is lt. Not designed.

Amount of pressure sprayer (without inserted tube) is about 50 cm.
The diameter of the pressure vessel is about 16 cm.
The length of the pressure vessel in laid-out hose connection to the spray nozzle is in the copy supplied to me almost exactly 2.20 meters (length hose with connections about 1.73 meters, bar with spray about 47 cm).
When spraying these dimensions have been fitted well, neither too long nor too short and it was all so easily accessible.

The bracket for the caps lock and the upper part of the "spray bar" are made of metal.

For me, a neutral to negative weighted point: The spray nozzle at this pressure sprayer is completely made of plastic.

Whether here now possibly in terms of durability there is a weak point and a metal nozzle would have been better, I can not clearly assess at this time.

The spray atomization is still satisfactory for my purposes, but not as finely adjustable in the spray atomization
as I know it, for example by nebulisers with metal nozzle.
The Gardena Handsprüher "804-20 Comfort Pump Sprayer 0.5 L" for currently under 8 though is good only conditionally as a comparison, but here Gardena has a part-metal version as donated nozzle and in this model a fine spray is specifically advertised.

Possibly find the Gardena developers in a 5 liter pressure sprayer a very fine spray unnecessarily.
Structural reasons or simply a cost-saving I can not rule here also.
The plastic spare nozzle of Gardena is incidentally offered commercially to about 2.
A suitable metal nozzle I could not find so far in range

Possibly are in this price range my claims regarding the fineness of the spray also just too high and the adjustability of the spray may be perfectly adequate for the other hobbyists.

A tip for future owner before commissioning: The suspension of the spray bar must really like completely flat and without gaps in the above photo concern firmly locked on the pressure vessel. For this purpose it is necessary to the suspension on one of the 2 protruding plastic discs for Hängengurt something solid "top push" until you hear it click shut. That was me just by simply held mapping scheme of the manual is not clear right away.

Conclusion: Currently and sufficient life I would probably opt again assuming my total for the above product.