This premium hydraulic oil for use in lubricating your equipment in the field. This AW (anti-wear) ISO 32 hydraulic oil contains anti-wear additives, as well as anti-foaming and anti-rust packages to keep your equipment operating in peak condition. Delta First has for years supplied hydraulic oils to OEM's in the airless sprayer industry, and will continue to offer the great oils available for your sprayers. This oil is suitable for both piston and diaphragm airless sprayers.