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Backflow valve

4

Backflow valve for sale on largest auction and classifieds sites

Home / / Backflow valve refurbished & used for sale | For Sale USA
Watts double check - double,

Watts double check - double,

$159.98
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Watts b911s comb fill - watts,

Watts b911s comb fill - watts,

$174.99
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Watts bbfp inch - watts, ips

Watts bbfp inch - watts, ips

$39.95
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975xl2 reduced - 34-975xl2, 3/4"

975xl2 reduced - 34-975xl2, 3/4"

$300.00
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350 double check backflow - 1-350,

350 double check backflow - 1-350,

$138.00
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Zurn wilkins 975xld pressure - zurn,

Zurn wilkins 975xld pressure - zurn,

$300.00
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720a pressure vacuum - 720a,

720a pressure vacuum - 720a,

$65.40
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Watts bronze double - 3/4",

Watts bronze double - 3/4",

$148.49
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Watts lead free brass - watts,

Watts lead free brass - watts,

$39.69
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Watts bronze double - in.,

Watts bronze double - in.,

$154.89
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Zurn wilkins 950xlt2 double - zurn,

Zurn wilkins 950xlt2 double - zurn,

$194.97
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Watts 007m3 4 in - watts,

Watts 007m3 4 in - watts,

$139.99
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350 double check - check, backflow

350 double check - check, backflow

$138.00
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Watts bronze double - watts,

Watts bronze double - watts,

$189.99
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Zurn wilkins reduced - wilkins, 1/2”

Zurn wilkins reduced - wilkins, 1/2”

$250.00
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350 double check - 3/4",

350 double check - 3/4",

$159.99
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350 double check backflow - 1-350,

350 double check backflow - 1-350,

$110.40
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Watts double check - watts,

Watts double check - watts,

$139.99
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Inch pvc backwater - inch,

Inch pvc backwater - inch,

$30.74
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Watts bronze quarter - watts,

Watts bronze quarter - watts,

$197.88
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Backflow preventer valve 4 - preventer, valve,4

Backflow preventer valve 4 - preventer, valve,4

$79.86
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For watts 0061888 - 9d-m2, 3/4

For watts 0061888 - 9d-m2, 3/4

$69.50
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Febco 765 4 in - fz, 3/4

Febco 765 4 in - fz, 3/4

$79.99
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For pvb backflow preventer - 1",

For pvb backflow preventer - 1",

$75.90
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Pvc white plastic solvent - white,

Pvc white plastic solvent - white,

$23.99
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Zurn wilkins 975xl2 - zurn, reduced

Zurn wilkins 975xl2 - zurn, reduced

$799.99
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Inch pvc backwater valve - 3,

Inch pvc backwater valve - 3,

$28.56
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New watts 007m1 double - 1",

New watts 007m1 double - 1",

$139.95
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Apollo valves 4alf205a2f - valves,

Apollo valves 4alf205a2f - valves,

$494.99
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Watts lf009m2 female rpz - lf009m2-qt,

Watts lf009m2 female rpz - lf009m2-qt,

$385.99
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009m3 qt backflow - 3/4", 009m3-qt

009m3 qt backflow - 3/4", 009m3-qt

$300.00
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Zurn wilkins 350 double - zurn,

Zurn wilkins 350 double - zurn,

$170.00
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975xl2 reduced - 34-975xl2,

975xl2 reduced - 34-975xl2,

$167.31
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Mcdonald brass backflow - 3/4",

Mcdonald brass backflow - 3/4",

$30.00
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Watts double check - in., valve

Watts double check - in., valve

$164.88
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Zurn wilkins 950xlt2 - zurn,

Zurn wilkins 950xlt2 - zurn,

$714.84
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Zurn wilkins 1 975xl - zurn, 1-975xl

Zurn wilkins 1 975xl - zurn, 1-975xl

$449.99
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Backwater valve drain - ,

Backwater valve drain - ,

$60.63
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Watts bronze quarter turn - watts, 1”

Watts bronze quarter turn - watts, 1”

$225.00
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Zurn wilkins 38ufx38f 700xl - zurn,

Zurn wilkins 38ufx38f 700xl - zurn,

$47.38
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Inch foot valve - inch,

Inch foot valve - inch,

$30.67
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Tondiamo backwater valve - tondiamo,

Tondiamo backwater valve - tondiamo,

$49.45
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M3 backflow preventer - 9d-m3,

M3 backflow preventer - 9d-m3,

$26.95
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Febco 1in bronze - 1in.bronze, pressure

Febco 1in bronze - 1in.bronze, pressure

$189.99
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Bronze double check - in.,

Bronze double check - in.,

$159.99
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Watts bronze quarter - in.,

Watts bronze quarter - in.,

$153.99
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Zurn wilkins 2 950xlt2 - wilkins, 2-950xlt2

Zurn wilkins 2 950xlt2 - wilkins, 2-950xlt2

$850.00
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Ames 2000b double - 1-1/4", check

Ames 2000b double - 1-1/4", check

$249.00
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Pressure vacuum breaker - 3/4",

Pressure vacuum breaker - 3/4",

$60.00
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Zurn wilkins 975xl2 - wilkins,

Zurn wilkins 975xl2 - wilkins,

$419.95
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Watts bronze pressure - 1, in.

Watts bronze pressure - 1, in.

$299.95
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Inch one way - inch,

Inch one way - inch,

$14.57
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Watts bronze double - watts, in.

Watts bronze double - watts, in.

$194.99
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905 051 check valve assembly - check,

905 051 check valve assembly - check,

$25.62
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Yahe hvac 920d inlet - yahe,

Yahe hvac 920d inlet - yahe,

$20.00
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New zurn wilkins 950xl3 - 950xl3, 1

New zurn wilkins 950xl3 - 950xl3, 1

$599.99
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350 double check backflow - check,

350 double check backflow - check,

$99.00
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Zurn wilkins 950xlt2 double - 950xlt2,

Zurn wilkins 950xlt2 double - 950xlt2,

$173.21
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Zurn wilkins double - zurn,

Zurn wilkins double - zurn,

$128.00
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Watts bronze double - watts,

Watts bronze double - watts,

$174.99
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Backwater valve drain - backwater,

Backwater valve drain - backwater,

$50.99
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Inch lead brass - no-lead, check

Inch lead brass - no-lead, check

$26.80
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Febco bronze pressure - febco,

Febco bronze pressure - febco,

$88.99
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Watts bronze double - bronze,

Watts bronze double - bronze,

$154.99
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720a pressure vacuum - 720a,

720a pressure vacuum - 720a,

$40.00
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Febco backflow lf850 qt - febco,

Febco backflow lf850 qt - febco,

$130.00
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Watts bronze double check - watts, 3/4"

Watts bronze double check - watts, 3/4"

$184.95
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Backflow preventer wilkins - backflow,

Backflow preventer wilkins - backflow,

$150.00
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Zurn wilkins 112 975xl2 2 - zurn, 1-1/2"

Zurn wilkins 112 975xl2 2 - zurn, 1-1/2"

$899.99
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Oatey pvc backwater - 4, in.

Oatey pvc backwater - 4, in.

$35.99
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Complete repair kit - complete,

Complete repair kit - complete,

$20.19
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For watts 0061888 - 9d-m2, 3/4

For watts 0061888 - 9d-m2, 3/4

$69.49
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For watts 4 inch - for, 3/4

For watts 4 inch - for, 3/4

$69.49
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Febco 1313 860 reduced - 860, 1"

Febco 1313 860 reduced - 860, 1"

$269.95
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975xl2 reduced - 3/4",

975xl2 reduced - 3/4",

$320.00
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Zurn wilkins 975xl2 - zurn,

Zurn wilkins 975xl2 - zurn,

$799.99
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Pvc inline check valve 2 - check, 11/2

Pvc inline check valve 2 - check, 11/2

$19.77
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Watts sd3 dual - watts,

Watts sd3 dual - watts,

$179.99
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Backflow preventer dual - preventer,

Backflow preventer dual - preventer,

$69.79
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2pcs npt female - 2pcs,

2pcs npt female - 2pcs,

$23.91
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Backflow preventer dual - 9d-m2,

Backflow preventer dual - 9d-m2,

$60.99
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Brass backflow preventer - brass,

Brass backflow preventer - brass,

$23.99
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Watts 1in bronze double - watts, check

Watts 1in bronze double - watts, check

$164.99
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Pack dn25 brass - 2,

Pack dn25 brass - 2,

$15.59
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Fip white plastic pvc inline - fip,

Fip white plastic pvc inline - fip,

$15.99
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Inch pvc backwater valve - 2,

Inch pvc backwater valve - 2,

$35.99
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Oatey pvc backwater - oatey, in.

Oatey pvc backwater - oatey, in.

$34.19
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Brass female thread - female, spring

Brass female thread - female, spring

$36.05
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Brass check valve inch nps - valve,

Brass check valve inch nps - valve,

$21.08
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Pvc 6in backwater check valve - backwater,

Pvc 6in backwater check valve - backwater,

$95.95
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720a pressure vacuum - 1",

720a pressure vacuum - 1",

$83.40
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Backflow repair kit - 3/4""-1"",

Backflow repair kit - 3/4""-1"",

$17.59
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Internal backwater valve f - internal,

Internal backwater valve f - internal,

$21.28
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Inch backflow valve - 1,

Inch backflow valve - 1,

$23.99
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Watts lf009m2 female - 2",

Watts lf009m2 female - 2",

$269.99
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Watts lfn9 lead free in - 3/8,

Watts lfn9 lead free in - 3/8,

$200.00
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📊96 listings · from $14.57 · avg $169.05

Browse 96 backflow valve listings currently in our index. Prices range from $14.57 to $899.99, with an average of $169.05. Whether you are hunting for a bargain or looking for a top-spec model, the selection below covers all price points — new, used and refurbished. More about backflow valve →

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Everything you need to know about backflow valve

Whether you are looking for a brand-new or second-hand backflow valve, eBay offers one of the largest selections available online. With 96 active listings at the time of this page's last update, you have plenty of choice across different conditions, sellers and price points. The cheapest option currently starts at $14.57, while premium listings can reach $899.99 — giving you a wide budget spread to work with. The average price of $169.05 can serve as a useful benchmark: listings below this tend to be used or auction-style, while those above often include extra accessories, warranties, or are sold by professional sellers with high feedback scores. Always check the seller's feedback rating and return policy before committing to a purchase. If you need the item quickly, filter by "Buy It Now" to avoid the uncertainty of auctions. For used items, look closely at the condition description and photos — terms like "good", "very good" and "like new" can mean very different things depending on the seller.

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