GRACO Fitting, Union, 1/2 x 3/8 Tube PTC - (SKU: 16U657)The GRACO 16U657 is a union fitting designed to connect 1 2 inch and 3 8 inch tubing, commonly used in fluid handling systems. Its material is not explicitly specified in available documentation, but it is typically constructed from durable metals or plastics for reliable performance in industrial environments. This fitting is intended for use within GRACO equipment to ensure secure and leak free connections between different tubing sizes. Key

Durable carbide tip

Facilitates secure and precise mounting

Includes all necessary components for valve replacement

and intended for use in small service garages and repair shops to safely store and dispense air hoses

Heavy-duty stainless steel (cylinder and rod)

material/catalyst supply

Align the locking tab for secure fitment

Regularly inspect and clean the tip

Supports consistent performance in spray foam and paint applications

The kit contains a roller bearing assembly

Critical for smooth pump and motor linkage

Designed for easy installation and integration with UniDrum systems