Whale 3/4" Hot Water Heater Drain Valve - 73123

Whale 3/4" Hot Water Heater Drain Valve – Model 73123

The Whale 3/4" Hot Water Heater Drain Valve (73123) is a reliable and durable marine and RV plumbing replacement valve designed to safely drain and service onboard hot water heaters. Built to withstand the demands of marine environments, this drain valve provides smooth operation and a secure shut-off for efficient maintenance and winterization.

Constructed with corrosion-resistant materials, the Whale 73123 valve is ideal for saltwater, freshwater, and RV applications, helping protect your hot water system from damage and buildup. Easy to install and compatible with standard 3/4" plumbing fittings, this drain valve is a practical upgrade or replacement for worn or leaking valves.

Whether you’re preparing your vessel for storage, performing routine service, or simply replacing a worn component, the Whale 3/4" Hot Water Heater Drain Valve delivers dependable performance and long-lasting reliability.

Key Features:

• 3/4" drain valve for marine and RV hot water heaters

• Durable, corrosion-resistant construction

• Smooth, secure operation for easy draining

• Ideal for winterization and maintenance tasks

• Compatible with standard marine/RV plumbing fittings

• Model: 73123

Applications:

• Marine hot water heater systems

• RV and camper water heaters

• Winterization and plumbing maintenance

Why Replace Your Drain Valve?

Over time, the seals in a standard drain valve can become brittle, leading to a slow, persistent drip that can cause corrosion on the exterior of your water heater or mess in the bilge. If your current valve is difficult to turn or shows signs of calcium buildup around the nozzle, replacing it with the Whale 73123 is an inexpensive way to prevent more costly repairs down the road.

Maintenance Pro-Tip:

When installing the new drain valve, use a high-quality plumbing thread sealant or PTFE (Teflon) tape to ensure a watertight fit. To winterize your system, turn off the power to the heater, close the cold water inlet, and open the hot water faucets to vent the system before opening this drain valve. This ensures the tank empties completely and prevents vacuum locks.

Replacement Drain Valve for the Following Whale Water Heater Models:

• S300W
• H2000, H2050, H2200, H2250, HF2000, HF2050, HF2200, HF2250, H2000E, H2050E, H2200E, and H2250E
• H2850EW-3000, H2850EW-4500, H2850ES-3000, and H2850ES-4500
• S1800, S1850, S1900, and S1950
• S1800E, S1850E, S1900E, and S1950E
• S600, S650, S700, S750, F600, F650, F700, F750, S1100, S1150, S1200, S1250, F1100, F1150, F1200, and F1250

Manufacturer : Whale Marine
Manufacturer Part No : 73123