Hayward Check Valve ECX4077B1 for Pool and Spa Systems silicone seamless coverage that hides wear

seamless coverage that hides wear and matches existing hardware

This NSF-certified model specifically meets the ASTM F2208 standard for pool alarms

Maintains water balance supports stable pH

Tropical fragrance blend – Blends sweet coconut

PVC construction resists corrosion and chemical wear

Hayward Check Valve ECX4077B1 for Pool and Spa Systems silicone seamless coverage that hides wearHayward ECX4077B1 Check Valve for Pool & Spa Systems Intro The Hayward ECX4077B1 Check Valve is a compact, OEM grade backflow preventer designed for reliable pool and spa circulation. It ensures water flows in the correct direction, protecting pumps, heaters, and filters from reverse pressure while maintaining consistent flow. Built by Hayward, a trusted name in pool equipment, this valve delivers durable performance tailored to standard pool and spa