Model 350XL 1-1/4 in. 350XLFT Brass FIP 175 psi Double Check Backflow Preventer

Part #W350XLH  |  Item #3908803  |  Manufacturer Part #114-350XL

$ 632.92 EACH
(Pricing is for 1-1/4 in)

Valve Size


Added to your cart. View Cart

1 Item(s) copied to list Favorites successfully.


To see local availability for this item, please

Select a Store 

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

AWWA Specifications: C510

Application: Residential

CSA Certified: CSA

Collection: Model 350XL

End Connection 1: Female Threaded

End Connection 2: Female Threaded

End Connections: Female Threaded

Height: 5-3/5 in

Lead Law Compliant: Yes

Length: 23-1/2 in

Material: [Cast Bronze, Rubber, Plastic]

Material Type: [Buna-N, Delrin®, Reinforced Nylon]

Maximum Pressure: 175 psi

Maximum Temperature: 180

NSF Certified: Yes

NSF Specifications: NSF 61 Annex G

Recommended Valve Application: Water

UL Listed: Yes

Valve Body Style: Threaded

Valve Disc Material: Silicone

Valve Seat Material: Silicone

Valve Size: 1-1/4 in

Valve Stem: Non-rising

Valve Type: Backflow Preventer

Weight: 21

Width: 11-1/2 in