Comprehensive Package: Each purchase includes 2 thermal relief valves, each with a 1/4 inch NPT thread size. Designed to activate automatically at 145°F, these valves help maintain safe operating conditions by regulating internal temperatures up to 200 PSI. Engineered for Durability: Constructed from high-quality brass, these thermal relief valves provide excellent resistance to oil and corrosion, ensuring long-lasting and reliable performance in demanding environments. A valuable component for maintaining your pressure washer’s efficiency. Protective Mechanism: These valves play a critical role in preventing overheating in pressure washers. The built-in seal is designed to melt at 145°F, allowing hot water to discharge and cooler water to enter, thereby protecting the pump and extending its service life. Universal Fit: Compatible with a wide range of pressure washer models, including various brands. These valves serve as direct replacements for part numbers 678169004, 678169002, 678169001, and 208673, offering broad compatibility across multiple units. Ease of Installation: Designed for simple and straightforward installation without the need for specialized tools or professional assistance. The 1/4 inch NPT threaded connection allows for quick and secure attachment, making maintenance convenient and efficient. Color: Gold Material: Brass Package Contents: 2 x Thermal Relief Valve Note: Only the items listed above are included. Other products are not included. Note: Lighting effects and monitor settings may cause slight variations in color appearance between the image and the actual item. Measurement may vary by +/- 1-3 cm.