Groco ARG503 Sight Glass with Drain Plug for ARG Series Strainer

The Groco ARG503 is a replacement sight glass assembly designed specifically for ARG series strainers. This component allows visual inspection of fluid flow and debris accumulation while providing convenient drainage capability through an integrated wingnut drain plug.

Key Features:

• Clear sight glass for visual monitoring of strainer performance
• Integrated drain wingnut for easy fluid drainage during maintenance
• Maximum working pressure: 50 PSI
• Maximum temperature rating: 225°F
• Direct replacement for ARG series strainer bowls

This sight glass assembly is ideal for marine plumbing applications where visual inspection of raw water, fuel, or other fluids is beneficial. The transparent design lets you quickly identify when strainer cleaning is needed, while the drain plug simplifies maintenance procedures.