Pump Sprayer – solo

Solo Pump Sprayers: Even Spray Mist, Clean Chemical Separation - for Detailing Without "Overspray Chaos"

Which SOLO pump sprayer is right for you? Choose 1.25/2/5 L based on area and handling, decide A (FKM, pH 1–7) or B (EPDM, pH 7–14) based on your cleaner – then you'll get a consistently adjustable spray pattern for reproducible results.

SOLO pump sprayers are the silent heroes in detailing: they turn "spraying somehow" into controlled, even application – whether for pre-treatment, APC jobs, interiors, wheel well detailing, or simply anywhere you need clean wetting without drip drama. In this subcategory, you'll exclusively find the SOLO CLEANLine pump sprayers 303 A/B (1.25 liters), 304 A/B (2 liters), and 305 A/B (5 liters).

• Consistent spray pattern thanks to adjustable nozzle. SOLO describes an adjustable universal nozzle in the CLEANLine that allows for a more balanced spray pattern and can be adjusted more precisely to the application – perfect for "fine" to "generous application."
• A/B system for chemical compatibility. FKM (A) for acidic media and EPDM (B) for basic/alkaline applications in the pH window 7–14 – this logic prevents mispurchases and ensures long-lasting performance.
• Volume matching your workflow. 1.25 L for precise, 2 L as an all-rounder, 5 L if you prioritize area and process speed – without constant refilling.

CLEANLine Spray Technology and Adjustable Nozzle for a Controlled Spray Pattern

CLEANLine from SOLO stands for sprayers that don't feel "like a garden sprayer," but like a tool: you set your application, hit the surface cleanly, and automatically reduce overspray, runs, and unnecessary product consumption. The basis is a nozzle that can be adjusted to work from a finer spray pattern to a more generous application – and SOLO explicitly emphasizes a new/adjustable universal nozzle that provides a more balanced spray pattern and can be adjusted more precisely for applications.

In everyday detailing, this "adjustability" is more than comfort: for interiors, you often want controlled, fine wetting (e.g., on a microfiber cloth or brush) so you don't flood every crevice. For pre-treatment or large-area cleaning, you want even, quick wetting without the product immediately running off in thick drops. You only get this range if the spray pattern and pressure remain stable – and that's where a pump sprayer proves its worth as a process tool.

Correctly Using FKM EPDM A B Labeling and pH 1-7 7-14

A/B is not a cosmetic model variant at SOLO, but a clear chemical signal. SOLO explains the assignment so that devices with "B" are intended for bases/alcohols in the pH range 7–14, while "A" covers acidic applications; in addition, the sealing materials (EPDM vs. FKM) are used accordingly. This is crucial in detailing because we rarely have "just one cleaner": APC, pre-cleaners, special surface cleaners – all can differ significantly chemically.

Consequence in practice: If you use typical alkaline cleaners, pre-treatments, or many alcohol-based applications, you take the B variant (EPDM). For acidic media or special applications in the low pH range, the A variant (FKM) is the right one. SOLO describes, for example, the 305 B with EPDM seals and a pH range of 7–14, and the 305 A with FKM seals and a pH range of 1–7 – this is exactly the logic you want to get "right" immediately when buying.

And yes: Even with pump sprayers, the unspectacular pro move applies – rinse after use. Not because we want to be dramatic, but because residues can affect nozzles, valves, and sealing surfaces, and thus your spray pattern can "drift" over time. But you want reproducible results – every time.

Selecting SOLO 303 A B 304 A B 305 A B by Volume and Application

303 A/B (1.25 liters) is for many the "precise glove" among pump sprayers: light, fast, ideal for specific tasks and anywhere you prefer to mix fresh more often than leave large quantities standing.

304 A/B (2 liters) is the all-rounder for detailers: enough volume to work quickly, but still so handy that you "like to hold it" when detailing your vehicle. Here, too, the A/B assignment is clearly guided (304 B pH 7–14, 304 A pH 1–7). If you frequently combine pre-treatment + contact washing, 2 liters is often exactly the point where you don't constantly refill, but can still stay fresh and clean.

305 A/B (5 liters) is the choice when area and process speed matter – or when you work in a setup where "start once, then go through" is the goal. SOLO describes the robust design, the stand, and the clear pH suitability depending on the variant (A: 1–7, B: 7–14) for the 305 A/B.