Whale Water Systems 75974 Temperature and Pressure Relief Valve for Marine Water Heaters

The Whale Water Systems 75974 is a critical safety component designed to protect marine hot water heating systems from excessive pressure and temperature buildup. This replacement relief valve is specifically engineered for Seaward 6-gallon and 11-gallon marine water heaters, providing reliable protection against dangerous conditions that can damage equipment or create safety hazards.

Key Features:

• 1/2" NPT threaded connection for secure installation
• 100 PSI maximum pressure rating for optimal safety protection
• 210°F temperature relief threshold prevents overheating
• Direct replacement for Seaward part number 73127
• Manufactured by Watts (OEM part number 0004431)
• Compatible with all Seaward marine water heaters

This temperature and pressure relief valve automatically releases water when system pressure exceeds 100 PSI or temperature reaches 210°F, preventing tank rupture and protecting your marine plumbing system. Essential for maintaining safe operation of your onboard hot water system, this valve ensures compliance with marine safety standards while extending the life of your water heater.