Pasco 2139 Hose Bibb Vacuum Breaker

Product Description

The PASCO 2139 is a hose bibb vacuum breaker designed to prevent backflow at outdoor hose connections. It threads onto a standard hose bibb or sillcock and creates a physical air gap that stops contaminated water from siphoning back into the potable water supply. This device is a lead-free (LF) fitting, meeting requirements for use in systems carrying drinking water. Plumbers and water utility contractors install this type of vacuum breaker as a code-required backflow prevention measure on residential and light commercial hose connections.

The PASCO 2139 is suited for outdoor hose bibbs and sillcocks found in residential construction and light commercial applications. It is commonly installed during new construction or retrofitted onto existing hose connections during plumbing inspection or code compliance upgrades. The fitting meets UPC (Uniform Plumbing Code) standards, making it appropriate for use in jurisdictions that adopt UPC requirements. It is a field-installed device requiring no special tools or adhesives.

Key Features

• Lead-free construction for compliance with safe drinking water regulations
• UPC listed, suitable for jurisdictions adopting the Uniform Plumbing Code
• Threads directly onto standard hose bibb or sillcock outlet
• Prevents backflow and cross-contamination of potable water supply
• Compact design for straightforward field installation

Compatibility

Designed as an OEM-style replacement or new-installation vacuum breaker for standard residential and light commercial hose bibbs and sillcocks.

Installation Notes

Installation is performed by a licensed plumber or qualified tradesperson. Shut off water supply to the hose bibb before servicing or replacing any downstream fittings. Thread the vacuum breaker hand-tight onto the hose bibb outlet, then snug with pliers — do not overtighten, as this can crack the body. Verify compliance with local plumbing code requirements, which in many jurisdictions mandate hose bibb vacuum breakers under IPC or UPC provisions.

Technical Specifications

• Lead-Free (LF): Yes
• Code Listing: UPC (AB100)

Standard Information

• Brand: PASCO
• Manufacturer Part Number: 2139