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Watts 909 AGK 4-6 8-10 M1 Air Gap for Reduced Pressure Zone Assemblies - Air Gaps
WattsAir Gaps

Watts 909 AGK 4-6 8-10 M1 Air Gap for Reduced Pressure Zone Assemblies

The Watts Air Gap (SKU 3G-OTH-444552) is an air gap accessory designed for use with Series 909M1 Reduced Pressure Zone Assemblies. This cast iron component features female NPT connections and is identified by…

SKU 3G-OTH-444552

Also listed as: 909AGK46810M1 · 909 AGK 4 6 8 10 M1 · 909-AGK-4-6-8-10-M1

Brand
Watts
Item
909 AGK 4-6 8-10 M1 Air Gap for Reduced Pressure Zone Assemblies
Category
Air Gaps
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

Watts
Manufacturer Part Number
909 AGK 4-6 8-10 M1
Type
909/909M1, Cast Iron, Reduced Pressure Zone Assemblies, Female, NPT
Product Type
Air Gap
Compatible with Series
909M1
Compatible Product Type
Reduced Pressure Zone Assemblies

Technical Documents

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Watts Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Watts Air Gap (SKU 3G-OTH-444552) is an air gap accessory designed for use with Series 909M1 Reduced Pressure Zone Assemblies. This cast iron component features female NPT connections and is identified by manufacturer part number 909 AGK 4-6 8-10 M1.

Frequently Asked Questions

What is the Watts Air Gap used for?

The Watts Air Gap is an accessory for Series 909M1 Reduced Pressure Zone Assemblies. It provides a physical separation between the water supply and potential contaminants, preventing backflow in commercial and industrial plumbing systems. This cast iron component with female NPT connections ensures reliable cross-connection control.

What are the specifications of the Watts Air Gap?

The Watts Air Gap (MPN 909 AGK 4-6 8-10 M1) is a cast iron accessory compatible with Series 909M1 Reduced Pressure Zone Assemblies. It features female NPT connections and is designed for use with reduced pressure zone backflow preventers. The product type is Air Gap, and it is manufactured by Watts.

Where to buy the Watts Air Gap worldwide?

You can source the Watts Air Gap through 3G Electric, a global industrial equipment distributor established in 1990. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we provide competitive pricing and reliable sourcing for this Watts accessory.

How to install the Watts Air Gap?

Install the Watts Air Gap by connecting it to the discharge port of a Series 909M1 Reduced Pressure Zone Assembly using the female NPT threads. Ensure the air gap is positioned above the flood rim of the drain to maintain proper separation. Follow local plumbing codes and the manufacturer's instructions for correct orientation and support.

Used in

Common applications for Watts
Industrial burner gas safety systems — Watts HF2000 filters with GF-series seal kits maintain clean, regulated gas supply to burner pilot and main flame controls
Commercial heating and boiler installations — Modular filter assemblies support preventive maintenance and component replacement without full system shutdown
Process gas delivery pipelines — DN25 through DN125 filter bodies accommodate varying flow rates and inlet pressures across manufacturing and chemical processes
Gas pressure regulation benches — Multi-stage Watts filter platforms integrate with pressure reducers and safety shutoff valves in test and calibration environments
Equipment retrofit and upgrade projects — Available connection sizes and seal kits enable adaptation of newer Watts components into legacy gas control systems
Planned maintenance and spare-parts inventory — Filter seal kits allow facilities to stock consumables in advance, reducing downtime during scheduled gas system servicing

Watts Products

3G Electric supplies Watts air gaps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
Repair part for Watts Series 009 backflow preventers, model 009-909-AG-A. Features a 1/2-inch female NPT connection. Used to maintain a physical air gap in backflow prevention assemblies for potable water systems
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Repair part for Watts Series 009 backflow preventers, model 009-909-AG-A. Features a 1/2-inch female NPT connection. Used to maintain a physical air gap in backflow prevention assemblies for potable water systems
Cast iron air gap fitting with 1/4 inch NPT connection on side 1. Designed for use with 975XL/975XL2 series pressure principle backflow preventers to create a physical air gap between the preventer and a drain, preventing backflow contamination in water systems
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Cast iron air gap fitting with 1/4 inch NPT connection on side 1. Designed for use with 975XL/975XL2 series pressure principle backflow preventers to create a physical air gap between the preventer and a drain, preventing backflow contamination in water systems
ZURN WILKINS Air Gap Fitting: Air Gap Fitting, 475V, Cast Iron, 2 1/2 in Connection Size - Side 1 (MPN AG-6)
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ZURN WILKINS Air Gap Fitting: Air Gap Fitting, 475V, Cast Iron, 2 1/2 in Connection Size - Side 1 (MPN AG-6)
Cast iron air gap fitting with 4-inch NPT connection on side 1. Designed for use with 475V series pressure principle backflow preventers to create a physical air gap between the preventer and a drain, preventing backflow contamination in water systems
ZURN WILKINS
Cast iron air gap fitting with 4-inch NPT connection on side 1. Designed for use with 475V series pressure principle backflow preventers to create a physical air gap between the preventer and a drain, preventing backflow contamination in water systems
Cast iron air gap fitting with NPT connections, designed for use with 975XL and 975XL2 series pressure principle backflow preventers. Complies with ANSI/ASME A112.1.2. Creates a physical air gap between the backflow preventer and discharge point to prevent backflow contamination in water systems
ZURN WILKINS
Cast iron air gap fitting with NPT connections, designed for use with 975XL and 975XL2 series pressure principle backflow preventers. Complies with ANSI/ASME A112.1.2. Creates a physical air gap between the backflow preventer and discharge point to prevent backflow contamination in water systems
Repair part for Watts Series 909 ELH backflow preventers. Functions as an air gap and elbow assembly. Compatible with valve sizes 2-1/2 to 3 in and models 009/LF909. Part number 522P30
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Repair part for Watts Series 909 ELH backflow preventers. Functions as an air gap and elbow assembly. Compatible with valve sizes 2-1/2 to 3 in and models 009/LF909. Part number 522P30

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Cast iron air gap with female NPT connections, designed for use with 009M2 Series Reduced Pressure Zone Assemblies. Provides physical separation between supply and discharge piping to prevent backflow in water systems
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Cast iron air gap with female NPT connections, designed for use with 009M2 Series Reduced Pressure Zone Assemblies. Provides physical separation between supply and discharge piping to prevent backflow in water systems
Cast iron air gap with female NPT connections, designed for use with Series 909M1 Reduced Pressure Zone Assemblies. Provides physical separation between potable and non-potable water to prevent backflow in commercial and industrial plumbing systems
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Cast iron air gap with female NPT connections, designed for use with Series 909M1 Reduced Pressure Zone Assemblies. Provides physical separation between potable and non-potable water to prevent backflow in commercial and industrial plumbing systems
Cast iron air gap with female NPT connections, designed for use with 009M1 Series Reduced Pressure Zone Assemblies. Provides physical separation between the assembly and a drain to prevent backflow in water systems. Suitable for commercial plumbing, irrigation, and industrial process lines
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Cast iron air gap with female NPT connections, designed for use with 009M1 Series Reduced Pressure Zone Assemblies. Provides physical separation between the assembly and a drain to prevent backflow in water systems. Suitable for commercial plumbing, irrigation, and industrial process lines
The Watts 957-AG is a plastic air gap accessory designed for use with Series 957 Reduced Pressure Zone Assemblies. It features a female NPT connection and provides a physical separation between discharge piping and flood rim to prevent backflow contamination in water systems
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The Watts 957-AG is a plastic air gap accessory designed for use with Series 957 Reduced Pressure Zone Assemblies. It features a female NPT connection and provides a physical separation between discharge piping and flood rim to prevent backflow contamination in water systems
This cast iron air gap accessory is designed for use with Series 909 Reduced Pressure Zone Assemblies. It provides a physical separation between the relief valve discharge and a drain to prevent backflow contamination. Connections are female NPT
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This cast iron air gap accessory is designed for use with Series 909 Reduced Pressure Zone Assemblies. It provides a physical separation between the relief valve discharge and a drain to prevent backflow contamination. Connections are female NPT
Bronze air gap with female NPT connections, designed for use with Series 995 reduced pressure zone assemblies. Provides physical separation in backflow prevention systems to prevent contamination of potable water supplies. Compatible with 009, 009M2, 009M3, and 995 series assemblies
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Bronze air gap with female NPT connections, designed for use with Series 995 reduced pressure zone assemblies. Provides physical separation in backflow prevention systems to prevent contamination of potable water supplies. Compatible with 009, 009M2, 009M3, and 995 series assemblies