Aqualine RK4 Vacuum Breaker Repair Kit 3/4 Inch

Product Description

The AQUALINE RK4 is a vacuum breaker repair kit sized for 3/4-inch vacuum breakers. It provides replacement internal components to restore proper backflow prevention function in potable water and irrigation applications. Plumbers and irrigation technicians use this kit to service existing vacuum breakers in the field without replacing the entire body assembly. Keeping a vacuum breaker operating correctly is critical to maintaining code-compliant separation between the water supply and potential contaminants downstream.

This repair kit is suited for residential and light commercial plumbing and irrigation systems where 3/4-inch atmospheric vacuum breakers or hose connection vacuum breakers require internal component replacement. It is a direct service part intended for technicians performing preventive maintenance or responding to failed backflow prevention inspections. This kit also replaces or corresponds to part numbers RPK72 and RK-4C.

Key Features

• Sized for 3/4-inch vacuum breaker assemblies
• Provides replacement internals to restore backflow prevention performance
• Replaces part numbers RPK72 and RK-4C
• Allows field repair without full vacuum breaker body replacement
• Compact and lightweight for easy transport and field stocking

Compatibility

Designed as a replacement repair kit for 3/4-inch AQUALINE vacuum breakers. Compatible with or replacing part numbers RPK72 and RK-4C as stated by the manufacturer.

Installation Notes

Installation should be performed by a licensed plumber or qualified irrigation technician. Shut off the water supply to the affected line and relieve system pressure before disassembling the vacuum breaker body. Follow local plumbing codes, including applicable IPC provisions for backflow prevention devices, when servicing or reinstalling vacuum breaker assemblies. Do not over-tighten internal components during reassembly, as this can damage seating surfaces and compromise backflow prevention function.

Technical Specifications

• Size: 3/4 inches
• Weight: 0.02 pounds
• UPC: 843687121817

Standard Information

• Brand: AQUALINE
• Manufacturer Part Number: RK4