• Compact, robust and easy to install. • Manufactured in high quality brass. • 10µ, 25µ, and 125µ elements. • No indicator filter. • G1/4 ports. • For use in lubrication, high pressure water and oil burner systems. • Reliable protection of low flow pilot valves. • Suitable for use with mineral and petroleum based fluids. • Nitrile seal. Filtration Media: 10micron (nominal) Nitrile phenolic resin impregnated cellulose. 25µ, 40µ and 125µ (nominal) stainless steel. Please note: HPR1719 & HPR1819 elements are not stainless steel, they are paper with tin end caps.