01527 544 033

11L Knapsack Pressure Sprayer

£44.00 (ex. VAT) / £52.80 (inc. VAT)

The premium ALTA 11L Knapsack Pressure Sprayer is a robust solution designed for all your spraying needs. Crafted from high-quality materials with Viton seals for superior resistance, this sprayer ensures optimal performance in diverse applications.


  For larger quantity prices, please contact us on 01926 482841
  Buy now, receive within 2-3 working days
  Free delivery on orders above £250


  • Produced from high quality materials with Viton seals for best overall resistancy
  • Is 100 per cent hermetic, ensuring it is completely sealed
  • A reinforced semi-transparent container with level graduations and a 10cm-wide filler funnel, making it easy to fill
  • A lance clip, which holds the lance in a fixed position when not in use
  • An extension lance, so you can increase the length from 650mm to 1050mm
  • A nozzle that can be fixed straight or at an angle, making it comfortable to use
  • An adjustable nozzle, meaning you can create a fine spray, a coarse spray or a jet spray
  • A filter in the handle, which stops blockages within the discharge valve
  • Two adjustable carrying straps, making the backpacker sprayer comfortable to use
  • A convenient handle for carrying the sprayer when not in use
  • Can be assembled with the pump on the left or the right, to suit your preference


  • Horticultural
  • Industrial
  • Construction
  • Farming
  • Automotive applications
  • Weedkillers
  • Timber treatments
  • Pesticides
  • Detergents
  • Oils


  • Polypropylene, Polyethylene
  • Springs: Stainless Steel
  • Seals: Viton

We can advise as to whether our trigger sprayers are suitable for use with general chemical components, but recommend you carry out trials to ensure compatibility with your own formulation.


What are the best seals for pressure sprayers? This depends on what chemicals you are spraying. Flourocarbon (trade name Viton) is the best overall resistant material to the widest range of chemicals. However, it is more expensive than other materials and may not be necessary. Nitrile (or Buna N) is lower in cost and is suitable for many water based chemicals. Ask our staff for more information about your chemicals. What is the difference between actual capacity and working capacity? Actual capacity is the ‘total’ capacity of the container. However, the pressure sprayer needs an amount of air to compress, to force the chemical out. The working capacity is the maximum amount of product which can be filled to operate the sprayer. How can I prolong the life of my sprayer? To get the best results from your sprayers we recommend they are completely emptied and rinsed through after each use.


Additional information

Dimensions (approx.):

H: 510mm W: 400mm x D: 140mm


Blue, Natural and Black

Working Capacity

11 litres

Total Capacity:

12 litres


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