Jacto’s 4-gallon (16-liter) CD400 has long been a popular choice among farmers, landscapers, construction crews and others who need extreme toughness and maximum resistance to abusive chemicals, especially those that have an EPA approved petroleum derived added. Very popular for use when spraying tumbleweeds and sagebrush type material or heavy duty weed/brush killers. The CD400 has a heavy duty internal brass piston pump with dual Viton piston cups and mechanical agitation, very accurate tank measurements and can be configured for right or left hand operation. The CD400 was performance testing exceeded 2500 hours of continuous operation without breakdown. Lus it only takes 8 handle pumps to achieve 45 psi, reducing operator fatigue. 3-year warranty, see owner's manual for details