3 backflow preventer for sale, brand-new and used.

3/4" Threaded ends with Coupling end. Dual check valve backflow preventer consisting of two independently operated in-line spring-loaded check valvesBronze body contruction includes two in-line cartridge check modulesCorrosion-resistant internal partsSingle union standard on inlet of all modelsMay be installed vertically or horizontallyMaximum temperature 180°FMaximum pressure 175 psi

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For your consideration: Here is a vented backflow preventer. Apparently, you place this in a beer (or other liquid) line to prevent the liquid from reversing direction. This item is 2 3/8" long and either brass plated or stainless.

WATTS RK 909 CK2SS 3/4-1 BACKFLOW PREVENTER REPAIR KIT THIS IS ONE OF THE KITS FOR STYLE 909 RPZ EDP# 0887123, NEW UNUSED, YOU GET WHAT IS PICTURED PLEASE CHECK WITH YOUR SUPPLIER FOR PROPER APPLICATION THANK YOU

Used to protect water supplies from contamination.Backflow preventer, 3/4" p/n8364

Here is a brand new Apollo Dual Check Valve Backflow preventer. It came from a Plumbing store going out of business sale. If you have any questions please ask.Thanks and Goodluck

SquareTrade © AP6.0

Up for sale i have a 3/8 Watts sd3 mf Astm 1022 Backflow preventor. It is made specifically for carbonated beverage machines but has endless purposes. It is brand new in the box and comes with the instruction sheet.

Don't miss the$e gems! ~ NEW - OEM ~ WATTS 9D-M2 DUAL CHECK VACUUM BREAKER, 3/4" Features: Backflow Preventer, Dual Check, Atmospheric Vent, Size 3/4 In, FNPT Connection,

You are bidding on a BRAND NEW Woodford 37HA-BR Brass Double Check Vacuum Breaker Backflow Preventer. These Woodford's have never been used and are brand new. The packages have been opened to verify contents and pictures.

Watts 3/4-1 Inch 909 Backflow preventer Check seat kit RK909s 0887124 Watts 3/4-1 Inch 909S seat kit for one check lead free 0887124

This listing is for (1) kit. There are (6) left at the time of listing. Watts 0887120 909 3/4" First Check Kit RK 909 CK1

Series 288A Hot or Cold Water Anti-Siphon Vacuum Breakers Size: 3/4 Series 288A represents a complete line of vacuum breakers designed to prevent backsiphonage of contaminated water into a potable water supply. They feature a lightweight, durable ?disc float? suitable for temperatures up to 180??F (82??C) which closes the atmospheric vent to prevent spilling under all rates of flow.

Watts Anti-Siphon Valve 3/8" Dual Check Backflow Preventer 7-C (Chrome) #0061856

Watts 3/4x3/4 7-U6 DCJ-SG Dual check backflow preventer. Purchased, never used, in original box. Sold as is, as shown in photos.