Model 350XL 1 in. 350XLFT Brass FIP 175 psi Double Check Backflow Preventer

Part #W350XLG  |  Item #3908842  |  Manufacturer Part #1-350XL

$ 402.09 EACH
(Pricing is for 1 in)

Valve Size


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Product Details

  • Top-mounted test cocks allow for easy installation
  • EZSwap® pressure vessel reduces repair time and costs
  • Flush Tool (FLUSH) provides easy line flushing, saving up to 15 minutes per installation
  • Construction offers corrosion-resistance and winterization
  • Low-lead law compliant
  • ASSE® Listed 1015
  • IAPMO® Listed
  • CSA® Certified B64.5
  • AWWA Compliant C510
  • Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California

Lead Law Compliant



ANSI Specifications: ANSI B1.20.1

ASSE Standards: ASSE 1015

ASTM Specifications: ASTM B-584

AWWA Specifications: AWWA C-606

Application: Residential

CSA Certified: CSA B64.5

Collection: Model 350XL

Color Finish: [Bronze, Black]

Color Finish Category: Bronze Tones

End Connection 1: FNPT

End Connection 2: FNPT

End Connections: FNPT

Fitting Size 1: 1 in

Fitting Size 2: 1 in

Fitting Sizes: 1 in

Height: 4-13/16 in

IAPMO Listed: Yes

Installation Type: [Horizontal, Vertical]

Lead Law Compliant: Yes

Length: 12-1/4 in

Material: [Cast Bronze, Delrin]

Material Type: [Buna-N, Reinforced Nylon]

Maximum Pressure: 175 psi

Maximum Temperature: 180

NSF Certified: Yes

NSF Specifications: NSF 61

Recommended Valve Application: Water

Temperature Rating: 33

Type: W350XLG

UL Listed: Yes

Valve Body Material: Cast Bronze

Valve Body Style: Threaded

Valve Disc Material: Silicone

Valve Seat Material: Silicone

Valve Size: 1 in

Valve Stem: Non-rising

Valve Type: Double Check Valve Assembly

Weight: 6

Weight Capacity: 21.5

Width: 1-3/16 in