Watts Dual Check with Atmospheric Vent: LFNLF-9, 3/8 in Pipe Size, MNPT x FNPT
The WATTS LFNLF-9 is a continuous pressure dual check backflow preventer, part of the WATTS Dual Check with Atmospheric Vent series. This model features a 3/8-inch pipe size with MNPT x FNPT connections and a 5 gpm…
SKU 3G-OTH-430237
Also listed as: LFNLF 9 · LFNLF-9
Local availability & support — the Philippines
- Delivery
- 5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
- Payment
- Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
- Ships to
- Manila, Quezon City, Cebu, Davao, Batangas
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Product Description
The WATTS LFNLF-9 is a continuous pressure dual check backflow preventer, part of the WATTS Dual Check with Atmospheric Vent series. This model features a 3/8-inch pipe size with MNPT x FNPT connections and a 5 gpm flow rate. It is designed to prevent backflow in continuous pressure applications.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is the WATTS LFNLF-9 dual check backflow preventer used for?
The WATTS LFNLF-9 is a continuous pressure dual check backflow preventer with atmospheric vent, used to prevent reverse flow of contaminated water into potable water lines in residential and commercial plumbing systems. It is suitable for applications where continuous pressure is present, such as boiler feed lines and irrigation systems.
What are the specifications of the WATTS LFNLF-9?
The WATTS LFNLF-9 has a 3/8-inch pipe size with MNPT x FNPT connections and a 5 gpm flow rate. It is part of the WATTS Dual Check with Atmospheric Vent series, designed for continuous pressure backflow prevention. The manufacturer part number is LFNLF9.
Where to buy the WATTS LFNLF-9 worldwide?
3G Electric supplies the WATTS LFNLF-9 dual check backflow preventer to customers worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this WATTS backflow preventer.
How to install the WATTS LFNLF-9 dual check backflow preventer?
Install the WATTS LFNLF-9 in a horizontal or vertical position with the flow arrow pointing downstream. Ensure the atmospheric vent is unobstructed and at least 12 inches above the flood level rim. Use pipe thread sealant on the MNPT connections and test the device per local codes after installation.
Used in
Common applications for WattsWatts Products
3G Electric supplies Watts continuous pressure dual check backflow preventers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
