Etherna Backpack Sprayer Pump. Backpack Sprayer With Manual Operation Suitable For All Liquids. The Aisi304 Stainless Steel Tank Has A Thickness Of 0.8 Mm And A Capacity Of 16 Liters. The Pumping Element Supplied Is Made Of Plastic With A Large Compression Chamber So As To Increase The Working Autonomy. The Pump Is Fitted As Standard With The Liquistop System, Which Allows It To Be Perfectly Watertight. Lance Completely In Brass With Lever Handle And 45 Cm Extension With Removable Jet And Spray Adjustable In Length And Air. Capacity: 16 Liters