SOLO Backpack Sprayers

When it comes to plastic backpack sprayers, we have decades of experience, having started producing full plastic sprayers back in 1960. The lightness of the material on the one hand and its durability on the other are just two good reasons to choose SOLO backpack sprayers. Starting with the Comfort models, the backpack sprayers are also equipped with highly resistant FKM seals (“Viton®”) for applying aggressive liquids. There are four pressure settings so you can apply precise quantities.

With abrasive fluids, the 473 D and 475 sprayer models with diaphragm pump are the ideal choice, as the special Tivilon® diaphragm in their pumps is highly robust. With either piston or diaphragm, the pumps in the SOLO backpack sprayers are some of the most effortless and efficient on the market. Longer operating times are therefore simple to achieve, thanks also to the exceptional straps, inspired by the outdoor sports sector on the 425 PRO models. Comfortable and padded, they can be adjusted in various ways for a perfect fit – also available as accessories.

The UV-resistant tanks come in three sizes: 10, 15 or 20 litres. They are translucent so the fill level is easily visible. The tank is filled and drained through a large filler neck. For convenient transport, the Comfort and Pro models with 15 litre tank feature a carrying handle with built-in spray wand retainer.

Basic-Line Backpack Sprayers

473 D Backpack Sprayer

SOLO CLASSIC 473 D: The entry level model with proven diaphragm pump and 10 l tank size, you will be reliably equipped for applying spray liquid or insecticide in your garden. A low number of wearing parts and sturdy technology ensure a long service life and minimum maintenance. Large filling apertures for convenient filling of the tank and smooth-running pumps make spraying pleasant work.

473 D Datasheet

Nominal capacity litres 10
Dry weight kg 4.2
Max. spray pressure bar 4.0
Nozzle SOLO flat spray and hollow cone nozzle
Pump type piston/diaphragm ✘ / ✓
Spray wand length cm 50
Manual spray pressure adjustment
Pressure gauge

424 Nova Backpack Sprayer

Inexpensive. Practical. Unique. Sophisticated. Four attributes that best describe the new SOLO NOVA 424 backpack sprayer. The simple design makes the Nova affordable as an ideal entry level model that is nevertheless robust and powerful. Just as you would expect from a SOLO backpack sprayer. The internal piston pump ensures absolute tightness. The design is based on natural user ergonomics, ensuring optimum user comfort even when using the appliance for longer periods or with a completely full 16 litre tank. The pump lever can be inserted on the left or right to suit the user, and the hose attached centrally also ensures a comfortable hold when operated on either side.The sprayer is practical to store too thanks to its handle and integral spray wand retainer.SOLO NOVA 424 – time for innovation!

424 Nova Datasheet

Piston pump, inboard
Nominal capacity litres 16
Dry weight kg 4.2
Max. spray pressure bar 4
Nozzle SOLO universal hollow cone nozzle, adjustable
Pump type piston/diaphragm ✓ / ✘
Spray wand length cm 50
Manual spray pressure adjustment
Pressure gauge

425 Classic Backpack Sprayer

SOLO CLASSIC 425: The entry level model with proven piston pump and 15 l tank size, you will be reliably equipped for applying spray liquid or insecticide in your garden. A low number of wearing parts and sturdy technology ensure a long service life and minimum maintenance. Large filling apertures for convenient filling of the tank and smooth-running pumps make spraying pleasant work.

425 Classic Datasheet

Nominal capacity litres 15
Dry weight kg 4.2
Max. spray pressure bar 4
Nozzle SOLO flat spray and hollow cone nozzle
Pump type piston/diaphragm ✓ / ✘
Spray wand length cm 50
Manual spray pressure adjustment
Pressure gauge

475 Classic Backpack Sprayer

SOLO CLASSIC 475: The entry level model with proven diaphragm pump and 15 l tank size, you will be reliably equipped for applying spray liquid or insecticide in your garden. A low number of wearing parts and sturdy technology ensure a long service life and minimum maintenance. Large filling apertures for convenient filling of the tank and smooth-running pumps make spraying pleasant work.

475 Classic Datasheet

Nominal capacity litres 15
Dry weight kg 4.2
Max. spray pressure bar 4.0
Nozzle SOLO flat spray and hollow cone nozzle
Pump type piston/diaphragm ✘ / ✓
Spray wand length cm 50
Manual spray pressure adjustment
Pressure gauge

435 Classic Backpack Sprayer

SOLO CLASSIC 435: The entry level model with proven piston pump and 20 l tank size, you will be reliably equipped for applying spray liquid or insecticide in your garden. A low number of wearing parts and sturdy technology ensure a long service life and minimum maintenance. Large filling apertures for convenient filling of the tank and smooth-running pumps make spraying pleasant work.

435 Classic Datasheet

Nominal capacity litres 20
Dry weight kg 5.0
Max. spray pressure bar 4
Nozzle SOLO flat spray and hollow cone nozzle
Pump type piston/diaphragm ✓ / ✘
Spray wand length cm 50
Manual spray pressure adjustment
Pressure gauge

Comfort-Line Backpack Sprayers

425 Comfort Backpack Sprayer

Key features of the SOLO Comfort backpack sprayers include adjustable pump levers, VITON® seals, a handle with integral spray wand retainer and wide shoulder straps. With a piston pump and 15 l tank size, the SOLO COMFORT 425 can tackle a wide variety of agricultural and woodland tasks just as successfully as they can handle trade applications and green space maintenance. The extensive range of accessories makes the three Comfort models even more versatile.

425 Comfort Datasheet

Nominal capacity litres 15
Dry weight kg 4.5
Max. spray pressure bar 4 / 6* ❪* with plug❫
Spray wand Plastic, 50 cm
Nozzle SOLO flat spray and hollow cone nozzle
Pump type piston/diaphragm ✓ / ✘
Manual spray pressure adjustment

475 Comfort Backpack Sprayer

Key features of the SOLO Comfort backpack sprayers include adjustable pump levers, VITON® seals, a handle with integral spray wand retainer and wide shoulder straps. With a diaphragm pump and 15 l tank size, the SOLO COMFORT 475 can tackle a wide variety of agricultural and woodland tasks just as successfully as they can handle trade applications and green space maintenance. The extensive range of accessories makes the three Comfort models even more versatile.

475 Comfort Datasheet

Nominal capacity litres 15
Dry weight kg 4.7
Max. spray pressure bar 4 / 6* ❪* with plug❫
Spray wand Plastic, 50 cm
Nozzle SOLO flat spray and hollow cone nozzle
Pump type piston/diaphragm ✘ / ✓
Manual spray pressure adjustment

435 Comfort Backpack Sprayer

The Solo 435 Comfort Line is a portable sprayer equipped with a piston pressure system  and the 20 l tank. The spraying pressure is 4 bar, but may be prolonged up to 6 bar if it is applied the vent plug.

The sprayer is easy to carry and use (with a weight of 5,1 kg), having an integrated folding carrying handle, with support for the 50cm lance. The 4 steps pressure adjustment allows a better use of the spraying quantity.

435 Comfort Datasheet

Nominal capacity litres 20
Dry weight kg 5.1
Max. spray pressure bar 6
Pump type piston/diaphragm ✓ / ✘
Manual spray pressure adjustment

Pro-Line Backpack Sprayers

425 Pro Backpack Sprayer

The 425 PRO is the highly professional tool within the category of backpack sprayers. It is stable, durable and low maintenance, even over long periods in use. What’s more, it comes with highly resistant VITON® seals for applying aggressive substances. The other features of this top-of-the-range model are equally professional: The length adjustable comfort pump lever helps you work ergonomically. Inspired by the outdoor sport sector, the straps are not only comfortable, but also fully adjustable. The manual valve with pressure gauge comes fitted as standard with a plastic spray wand which can be adjusted from 50 – 90 cm in length. The standard delivery also includes a high quality, adjustable brass nozzle.

425 Pro Datasheet

Nominal capacity litres 15
Dry weight kg 5.2
Max. spray pressure bar 4 / 6* ❪* with plug❫
Spray wand Telescopic, 50 – 90 cm
Nozzle SOLO brass flat spray and hollow cone nozzles
Pump type piston/diaphragm ✓ / ✘
Manual spray pressure adjustment
Pressure gauge

475 Pro Backpack Sprayer

The Solo 475 PRO Professional Diaphragm Pump Backpack Sprayer is a 15 litre capacity backpack sprayer with impressive application performance.Diaphragm pumps suffer from lower wear and tear than piston pumps and they are more suitable for corrosive, abrasive or more granular solutions.

It is equipped with a pressure regulator and has a durable, adjustable 50-90cm spray lance with a robust manual valve, for spray pressure adjustment and precisely metered application volume. The adjustable nozzle is made from high quality brass.

The UV-resistant plastic tank is ergonomically designed for maximum carrying comfort and the harness has wide, comfortable straps. It has an easy to operate pump with a rotating, length adjustable pump lever designed for fitting to either the left or right. There is a clamping holder for the spray wand.

It is manufactured from high grade UV stabilised plastic for low weight and durability. It has a large filling and cleaning aperture and chemically resistant VITON seals suitable for use with all herbicides.

475 Pro Datasheet

Nominal capacity litres 15
Dry weight kg 5.4
Max. spray pressure bar 4
Pump type piston/diaphragm ✘ / ✓
Manual spray pressure adjustment