GRACO 13:1 Ratio External Mix Chop System with 25 ft (7.6 m) Hose and Cart - (SKU: 16R088) but GRACO check valves are

but GRACO check valves are typically constructed from durable materials suitable for industrial applications

The agitator is constructed with carbon steel (CS) components and is intended for use within GRACO mixing and dispensing equipment to ensure consistent material quality and prevent settling

Used as a replacement or upgrade handle gun kit for GRACO airless spray guns in industrial and commercial painting applications

including those requiring chemical resistance and durability in demanding environments[1][2][5]

but typical repair kits include metal and plastic parts such as seals

GRACO 13:1 Ratio External Mix Chop System with 25 ft (7.6 m) Hose and Cart - (SKU: 16R088) but GRACO check valves areThe GRACO 16R088 is a proportioning system designed for fiberglass reinforced plastic (FRP) applications. It features an external mix chop system with a 25 ft (7. 6 m) hose and cart, constructed from durable materials for industrial use. The system is intended for efficient, high quality spray application of resin and catalyst in FRP manufacturing and repair processes. Key Features: Proportioning System 16R088 Designed for use with GRACO components