The is a petrol‑powered knapsack sprayer built for real field work — not some toy you fiddle with on weekends. If you’re walking orchards, vineyards or sprawling gardens, the 15 L tank and 0.9 HP class output give you grunt and coverage without killing you with weight or vibration.

This is more than just a “sprayer pump” — it’s a serious backpack power sprayer with a genuine engine, decent flow rate and the sort of sprayer lance you can tune and aim so the spray lands where you want it. Many cheaper units feel flimsy; this one doesn’t.

Key Features:

• Petrol Engine - Delivers reliable power and doesn’t tether you to a battery or cord.
• 15 L Tank - Holds a good amount of liquid so you don’t stop every few rows to refill.
• Adjustable Nozzles - Lets you switch patterns and reach tight spots or open areas efficiently.
• Comfort Harness - Keeps the load on your shoulders and back instead of just your arms.
• Smart Start - Cuts down on the usual recoil hassle — you’ll be spraying faster with less sweat.

Applications

From orchards to vineyards, nurseries to field crops, this engine‑driven sprayer tackles pest control, foliar feeds, weed control and even fungicide jobs like a seasoned helper — and with 15 L on board, you won’t be running back and forth to the truck every five minutes.

Why Choose This Model

Here’s the thing: for a knapsack sprayer, the 321S15 doesn’t feel under‑powered or cheap. Its petrol‑powered design means you get consistent spray pressure at roughly 4 L per minute and a harness that actually sits right on your frame. You’re not fighting it; you’re working with it.

Technical Specifications Explained

• Engine Displacement – 25.4 cm³ - Enough muscle for steady pressure without being an over‑heavy beast.
• Container Capacity – 15 L - Large enough for acres but not so big it buries your back.
• Flow Rate – ~4 L/min - Steady output that’s easy to control across different spray jobs.
• Weight – 9.2 kg - A manageable pack load that you can carry all day with decent harnessing.
• Output Power – ~0.7–0.9 HP - Gives you real spraying force without gobbling fuel.

Who Should Buy This

If you’re a farmer, landscaper or gardener who hates stopping mid‑row to refill or fiddle with weak pumps, this 15 L petrol sprayer is made for hands‑on work and all‑day uptime. It’s the sort of tool that feels like an upgrade the first time you shoulder it and start moving.

And if you’ve been stuck with underpowered battery or hand pumps that just don’t cut it under sun and wind — trust me — you’ll notice the difference from minute one with this Husqvarna.