GRACO Xtreme Lower, 145cc, with Filter, PE/Leather - (SKU: L145C2) Its intended use is to

Its intended use is to replace worn or damaged seals within the 802-20 dispensing unit

likely refers to diameter or length in inches or millimeters

This part functions as a detent pin

Durable elastomers and metals (typical for repair kits)

1" (25 mm) Inlet

GRACO Xtreme Lower, 145cc, with Filter, PE/Leather - (SKU: L145C2) Its intended use is toThe GRACO L145C2 is a high volume lower assembly designed for use in protective coating applications. It is constructed with UHMWPE (ultra high molecular weight polyethylene) and leather components, and features a built in 60 mesh fluid filter for contaminant protection. Key Features: Lower assembly 145cc UHMWPE (PE) and leather 7400 PSI Designed for use with GRACO Xtreme airless sprayers and compatible with various high pressure protective coating