GRACO Piston Assembly with O-Ring - (SKU: 4-411-02) Used primarily in automatic lubrication

Used primarily in automatic lubrication systems to monitor and indicate excessive pressure

protecting downstream GRACO equipment and ensuring reliable operation

intended to reduce noise and improve air circulation in pneumatic motor-driven agitators and similar GRACO equipment

The gun is constructed with durable materials

GRACO Piston Assembly with O-Ring - (SKU: 4-411-02) Used primarily in automatic lubricationThe GRACO 4 411 02 is a piston assembly with an integrated O ring, designed for use in GRACO E & ER series fluid handling guns. The part is engineered to provide reliable sealing and smooth piston movement, ensuring optimal performance and durability in high pressure fluid transfer applications. Material specifics are not detailed in available sources, but GRACO pistons are typically constructed from robust metals with high quality elastomeric seals.