1-1/2" Bronze Backflow Preventer Check Valve, Pressure Reducing, Lead-Free

Apollo® Model RP4A Lead-Free RPZ Backflow Preventer – Engineered for Performance and Protection

The Apollo® Model RP4A is a lead-free reduced pressure zone (RPZ) backflow preventer built to meet the rigorous standards of commercial, industrial, and high-demand residential systems. Designed to provide superior protection against backpressure and backsiphonage, this unit ensures cross-connection control and preserves potable water integrity in critical installations.

This model features modular internal components accessible from the top, allowing quick service and minimal downtime. The RP4A includes captured springs, corrosion-resistant seats, and stainless steel trim on all shut-off valves—making it a go-to solution for contractors focused on longevity, ease of maintenance, and dependable operation under pressure.

Contractor-Grade Advantages

• Backflow Protection – Effective against both backpressure and backsiphonage from contaminants in non-potable sources.
• Top-Entry Design – Allows tool-free access to internal checks for simplified field maintenance.
• Field-Serviceable Cartridges – Includes replaceable seats and captured springs for fast part swaps.
• Built-In Test Cocks – Positioned for convenience during annual compliance testing.
• Stainless Steel Handles & Trim – Heavy-duty valves with robust corrosion resistance for long-term performance.
• Chloramine-Resistant Elastomers – Increases resilience in systems using treated municipal water.
• Lead-Free Construction – Complies with NSF/ANSI 372 and state regulations for low-lead plumbing products.
• Made in the USA – Quality manufacturing with a 5-year factory warranty.

Install with Confidence

Designed for horizontal installation, the RP4A is suited for a range of system configurations. While straightforward for trained professionals, installation should follow applicable codes and be conducted by a certified backflow technician to ensure system integrity and code compliance. Proper testing upon installation is critical.

Specifications

• Model: RP4A
• Material: Lead-free bronze body
• Inlet/Outlet Size Range: Available in multiple sizes to fit job requirements
• Installation Orientation: Horizontal only
• Operating Pressure: Rated for high-performance systems
• Certifications: ASSE 1013, CSA B64.4, and IAPMO approved
• Warranty: 5-year limited manufacturer warranty

Reliable Protection for Demanding Applications

Whether it’s for a commercial site, irrigation zone, or multi-unit residential system, the Apollo® RP4A delivers proven performance where it counts. Its contractor-focused design cuts down on labor and keeps systems running safely and efficiently. Choose the RP4A for installations that demand high standards and proven results.