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PROTEGE 15L Garden Weed Sprayer Multifunction Backpack Fertilizing Watering Farm

Regular Price $199.00 Special Price $179.00 $349.00RRP

PROTEGE 15L Garden Weed Sprayer Multifunction Backpack Fertilizing Watering Farm

was $199.00
$349.00 RRP
In stock
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Shipped by a preferred supplier

Extended Care

Extended Care provides an extra 1-year warranty in addition to the standard 12 Month Warranty period. View warranty page

4 interest free payments of $44.75

pay later from $10 per week.

FREE pickup from our Sydney warehouse

Home delivery to 2000

12 Month standard warranty

12 hour dispatch on all orders


  • UV Stabilised Tank
  • Sanyo Li-Ion Battery w/ overcharge protection
  • Padded Adjustable Shoulder Straps
  • Weighs less than 4kg
  • Durable, 1.25 Metre Hose
  • 3 x Adjustable Spraying Nozzles
  • Detachable Spray Trigger and Lance
  • Easy-to-fill tank with integrated handle on cap 


  • RRP $349.00
  • Brand Protege
  • Model SI4
  • Battery Type Lithium Ion
  • Battery Voltage 18V
  • Battery Capacity 2.2Ah
  • Pump Type Diaphragm
  • Tank Capacity 15L
  • Tank Material UV Stabilised Polyethylene
  • Current 1.5A
  • Flow Rate 1.8 L/min
  • Spray Distance >8m
  • Note Assembly required

In the box

  • 1x Protege SI4 15L Backpack Sprayer
  • 1x Battery Charger
  • 1x 3 Way Nozzle
  • 1x Metal Adjustable Nozzle
  • 1x Lance
  • 1x Spray Trigger
  • 1x Fan Nozzle
  • User Manual is accessible online

Size & weight

  • Carton Weight: 5kg
  • Carton Dimensions (W x D x H): 23 x 35 x 57cm
  • Product Weight: 3.7kg
  • Product Dimensions (W x D x H): 36 x 20 x 52cm
  • Lance (L): 83cm

Product manual

Protege make it look easy, but packing this much kit into a lightweight 4 kilogram sprayer is a feat to behold. Introducing the SI4 Backpack Sprayer, the future of portable spraying. The SI4 has padded shoulder straps for effortless carrying and ultimate portability. Never has a sprayer offered such a level of efficiency.

Ideal for:

  • Agriculture Sprays
  • Fertilizer
  • Pesticides
  • Disinfectants
  • Rinsing

Filling the fifteen litre tank has been made easy with an extra wide inlet and inlet filter to ensure smooth operation. The translucent 15L tank is marked with 4 increments for easy measuring and monitoring, while it's angular design increases its strength. The control panel is conveniently built into the side of the tank for a single body operation.

The 18V Sanyo Lithium-Ion battery sits head and shoulders above the competition, allowing for up to ninety minutes of continuous operation. That means you can spray up to two hundred litres on a single charge. Or you could spray a large house or small property for a whole year off one charge! The compact battery is concealed in a splash proof compartment and has an LED power indicator so that you'll never start a job on an empty battery.

The SI4 caters to all of your spraying needs with the included 3 adjustable nozzles. The metal single nozzle is perfect for on the fly pressure adjustments. The triple nozzle head is the perfect option for maximising coverage and efficiency. The spray trigger, lance, hose and all nozzles separate for easy and thorough cleaning.

Make the switch, try your own brand new Protege SI4 TODAY!

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