Downspouts are critical for directing stormwater away from buildings, and choosing the right outlet is essential to protect both structure and landscape. The Zurn ZF199 Downspout Nozzle is engineered to manage roof drainage efficiently while preventing wall staining and erosion. Designed for both functionality and durability, the ZF199 is an excellent choice for commercial, institutional, and industrial projects. This guide highlights its features, applications, installation considerations, and includes a case study.

Zurn ZF199 Downspout Nozzle Schematic

What Is the Zurn ZF199?

The ZF199 is a downspout roof drain nozzle designed to project stormwater away from a building’s exterior surface. Manufactured from Dura-Coated cast iron, it prevents water from running directly down walls, which can cause discoloration, staining, or structural damage over time. Its design ensures long-lasting reliability and ease of maintenance.

Key Features & Benefits

• Cast Iron Body: Dura-Coated for superior corrosion resistance and durability.
• Water Deflection: Projects water away from exterior surfaces to protect walls and facades.
• Compact Design: Fits seamlessly into downspout and roof drain systems.
• Low Maintenance: Minimal upkeep required thanks to its durable construction.
• Versatile Use: Suitable for commercial, institutional, and industrial buildings.

Side View of Zurn ZF199

Applications of the ZF199

• Commercial buildings needing to protect exterior finishes
• Institutional facilities such as schools and hospitals
• Industrial sites with high stormwater runoff
• Retrofits where preventing wall damage is a priority

Installation Considerations

The ZF199 is typically installed at the termination point of a leader or downspout. Installers should ensure proper slope for effective water projection and align the nozzle away from pedestrian walkways or sensitive landscaping. The cast iron body should be checked during installation to confirm a watertight fit and optimal direction for runoff dispersion.

Zurn ZF199 Installation Schematic

Case Study: School Facility Protection

Challenge: A public school was experiencing wall staining and masonry deterioration from water streaming down the exterior walls. Maintenance crews spent significant time and money cleaning and repairing surfaces.

Solution: The facility installed Zurn ZF199 Downspout Nozzles at key roof drain termination points. The nozzles projected water safely away from the walls, reducing direct runoff contact.

Outcome: After installation, staining was eliminated, and wall maintenance costs were reduced by 60%. The nozzles provided a simple yet effective solution that extended the life of the building’s exterior.

Conclusion

The Zurn ZF199 Downspout Nozzle offers a simple yet effective way to protect building exteriors from water damage. With its durable cast iron body, low-maintenance design, and ability to project water safely away from walls, it is an essential component for any drainage system prioritizing both performance and longevity.