Watts 995-AG Air Gap Drain Fitting
Item Number: 0439190
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$468.37
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Brand - Watts
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- Provides unobstructed physical separation
- Weight: 1.3 lb
- Designed for Watts 995 Series RPZ assemblies
- Compatible with 3 to 6 inch backflow devices
- Bottom connection: 2 inch Female NPT
- Durable plastic construction
- Can be installed vertically or horizontally
- Approved to ANSI/ASME A112.1.2
Description
Description
The Watts 995-AG Air Gap Drain Fitting (0439190) is a plastic splash guard designed for 3 to 6 inch Watts 995 Series Reduced Pressure Zone (RPZ) backflow assemblies. It ensures unobstructed physical separation between a potable water supply and an open receiving vessel, safely directing nuisance discharge to a drain. Featuring a 2 inch Female NPT connection, this lightweight fitting can be installed horizontally or vertically (a vent elbow is required for vertical setup). It is approved to ANSI/ASME A112.1.2 standards, providing reliable backflow prevention.
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Connections
- The bottom of the air gap features a 2 inch Female NPT connection designed to connect to a drain line or pipe.
Compatibility
- This air gap is specifically designed for use with Watts 995 Series Reduced Pressure Zone (RPZ) backflow assemblies.
- It is compatible with 995 Series devices ranging from 3 inches to 6 inches in size.
Installation Notes
- The air gap can be installed in both horizontal and vertical orientations.
- For vertical installations, a vent elbow is required to ensure proper functionality and drainage.

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Additional Details
The Watts 995-AG Air Gap Drain Fitting provides essential unobstructed physical separation between a potable water supply line and an open receiving vessel. It is designed to attach to the relief port of a Reduced Pressure Zone (RPZ) backflow device, directing any discharge safely to a drain.
Key Features
- Provides unobstructed physical separation for backflow prevention
- Designed to prevent nuisance discharge
- Constructed from durable plastic for lightweight performance
- Features a 2 inch Female NPT Connection at the bottom
Compatibility
- Specifically engineered for use with Watts 995 Series Reduced Pressure Zone assemblies
- Compatible with 3 inch to 6 inch 995 Series backflow devices
Installation
- Can be installed in both vertical and horizontal orientations
- A vent elbow is required for vertical installation to ensure proper function.
Specifications
- Product Type: Air Gap Drain Fitting
- Series Compatibility: Watts 995 Series RPZ Assemblies
- Size Compatibility: 3 to 6 inch
- Bottom Connection: 2 inch Female NPT
- Construction Material: Plastic
- Overall Height (A): 5 inches (127 mm)
- Overall Width (B): 8 inches (203 mm)
Certificates & Approvals
- ANSI/ASME A112.1.2
FAQs
What is the primary purpose of the Watts 995-AG Air Gap Drain Fitting?
The primary purpose is to provide an unobstructed physical separation between the potable water supply line and an open receiving vessel, safely directing any discharge from an RPZ backflow device to a drain, thereby preventing contamination.
Which Watts backflow preventer series is this air gap compatible with?
This air gap drain fitting is specifically designed for use with Watts 995 Series Reduced Pressure Zone (RPZ) assemblies.
What size backflow devices can the 995-AG accommodate?
The Watts 995-AG Air Gap Drain Fitting is compatible with Watts 995 Series RPZ backflow devices ranging from 3 inches to 6 inches.
What type of connection does this air gap have for the drain line?
The bottom of the Watts 995-AG Air Gap Drain Fitting features a 2 inch Female NPT connection for attaching a drain line.
Can the 995-AG air gap be installed both vertically and horizontally?
Yes, this air gap can be installed in both vertical and horizontal orientations. However, a vent elbow is required for proper function during vertical installations.