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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 lead free brass - watts, in.

Watts lead free brass - watts, in.

$39.69
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Watts b911s comb fill - b911s-m3,

Watts b911s comb fill - b911s-m3,

$174.99
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350 double check backflow - 1-350,

350 double check backflow - 1-350,

$129.99
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975xl2 reduced - 3/4",

975xl2 reduced - 3/4",

$300.00
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350 double check - double, backflow

350 double check - double, backflow

$138.00
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Watts backflow preventer - watts,

Watts backflow preventer - watts,

$159.95
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Watts double check valve - 1,

Watts double check valve - 1,

$164.88
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Watts bronze quarter - watts,

Watts bronze quarter - watts,

$197.88
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Watts lf007m1 inch - watts, 1

Watts lf007m1 inch - watts, 1

$188.88
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Watts 2000wp cast iron - watts,

Watts 2000wp cast iron - watts,

$399.00
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Watts 9d m3 - 1/2",

Watts 9d m3 - 1/2",

$49.87
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Watts lfusg in - lfusg-cs,

Watts lfusg in - lfusg-cs,

$75.00
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Zurn wilkins 950xlt2 - zurn,

Zurn wilkins 950xlt2 - zurn,

$229.99
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Zurn wilkins 350xl double - 350xl,

Zurn wilkins 350xl double - 350xl,

$250.00
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Zurn wilkins 950xlt2 - wilkins, in.

Zurn wilkins 950xlt2 - wilkins, in.

$225.00
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Watts bronze quarter turn - watts,

Watts bronze quarter turn - watts,

$225.00
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M3 backflow preventer - 1/2", 9d-m3

M3 backflow preventer - 1/2", 9d-m3

$26.95
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Zurn wilkins 112 975xl2 2 - 112-975xl2, 1-1/2"

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

$859.00
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Febco bronze pressure - febco, 3/4”bronze

Febco bronze pressure - febco, 3/4”bronze

$88.99
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Zurn wilkins double check - wilkins,

Zurn wilkins double check - wilkins,

$199.99
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Zurn 950xl double - zurn, 2-950xl

Zurn 950xl double - zurn, 2-950xl

$710.00
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Zurn wilkins 950xlt2 double - 950xlt2,

Zurn wilkins 950xlt2 double - 950xlt2,

$194.97
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Backflow preventer valve - backflow, valve,4

Backflow preventer valve - backflow, valve,4

$79.86
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Check valve with backflow - check,

Check valve with backflow - check,

$32.99
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Watts bronze double - watts, in.

Watts bronze double - watts, in.

$189.99
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Ames 7015564 cam check - ames, #1

Ames 7015564 cam check - ames, #1

$250.00
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Zurn wilkins double check - double,

Zurn wilkins double check - double,

$128.00
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Pvc white plastic solvent - white,

Pvc white plastic solvent - white,

$23.99
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Backflow preventer check - backflow, preventer,

Backflow preventer check - backflow, preventer,

$229.95
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Zurn wilkins 350 - 1”,

Zurn wilkins 350 - 1”,

$170.00
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Wilkins 950xl double check - 2-950xl,

Wilkins 950xl double check - 2-950xl,

$700.00
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Zurn wilkins model - ,

Zurn wilkins model - ,

$400.00
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Febco lf825y rpz backflow - febco,

Febco lf825y rpz backflow - febco,

$1689.00
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350 double check - 34-350, 3/4"

350 double check - 34-350, 3/4"

$87.77
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For watts 0061888 - for, 3/4

For watts 0061888 - for, 3/4

$69.50
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Lead free backflow preventer - backflow,

Lead free backflow preventer - backflow,

$42.74
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720a pressure vacuum - 3/4",

720a pressure vacuum - 3/4",

$65.40
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Watts bronze reduced - 1, in

Watts bronze reduced - 1, in

$299.99
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Apollo dc40 double - dc40-1,

Apollo dc40 double - dc40-1,

$185.00
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Watts bronze double - watts, 3/4

Watts bronze double - watts, 3/4

$299.00
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Pressure vacuum breaker - pressure,

Pressure vacuum breaker - pressure,

$60.00
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Inch pvc backwater valve - 3,

Inch pvc backwater valve - 3,

$30.60
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Inch white pvc backwater - inch,

Inch white pvc backwater - inch,

$32.17
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For watts 0061888 - watts,

For watts 0061888 - watts,

$69.49
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Zurn wilkins rk34 nr3xl - zurn,

Zurn wilkins rk34 nr3xl - zurn,

$49.99
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350 double check - 34-350,

350 double check - 34-350,

$100.00
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Inch one way - 1,

Inch one way - 1,

$14.57
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Cinsda pvc backwater - 3", valve

Cinsda pvc backwater - 3", valve

$40.00
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Mcdonald brass backflow - 3/4",

Mcdonald brass backflow - 3/4",

$20.00
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Foot valve check with - check,

Foot valve check with - check,

$11.70
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Watts bronze double - 3/4, in.

Watts bronze double - 3/4, in.

$194.99
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Npt brass check valve - npt,

Npt brass check valve - npt,

$28.79
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Cash acme backflow - cash, preventer

Cash acme backflow - cash, preventer

$24.68
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Pack brass 4 ght - 2,

Pack brass 4 ght - 2,

$15.99
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Inch heavy duty - 1-inch, bronze

Inch heavy duty - 1-inch, bronze

$70.17
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New watts dual check - 3/8",

New watts dual check - 3/8",

$120.00
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Zurn wilkins 950xlt2 - 950xlt2, 2"

Zurn wilkins 950xlt2 - 950xlt2, 2"

$714.84
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Zurn wilkins in - 3/4,

Zurn wilkins in - 3/4,

$199.00
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350 double check backflow - 34-350,

350 double check backflow - 34-350,

$135.00
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Zurn wilkins 975xl 4 - zurn,

Zurn wilkins 975xl 4 - zurn,

$349.99
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Lawn genie l7010 - l7010, in

Lawn genie l7010 - l7010, in

$29.85
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720a pressure vacuum - 720a,

720a pressure vacuum - 720a,

$83.40
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Watts bronze double - in.,

Watts bronze double - in.,

$189.00
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350 double check backflow - 1-350,

350 double check backflow - 1-350,

$95.00
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Brass one way - brass, 1

Brass one way - brass, 1

$18.42
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Zurn wilkins 350xl double - zurn,

Zurn wilkins 350xl double - zurn,

$225.00
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Watts lead free double - watts,

Watts lead free double - watts,

$39.95
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New 375a zurn wilkins - 3",

New 375a zurn wilkins - 3",

$3569.99
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Pcs brass check - check, dn15

Pcs brass check - check, dn15

$25.40
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350 double check - 34-350,

350 double check - 34-350,

$149.99
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720a pressure vacuum - 1",

720a pressure vacuum - 1",

$64.99
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Threaded backflow - threaded, (ips)

Threaded backflow - threaded, (ips)

$35.37
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Mako mk5 digital valve - mako,

Mako mk5 digital valve - mako,

$475.00
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Test cock dust cap backflow - cap,

Test cock dust cap backflow - cap,

$10.27
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Zurn wilkins 38ufx38f - zurn, 38ufx38f-700xl

Zurn wilkins 38ufx38f - zurn, 38ufx38f-700xl

$49.87
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Watts 9dm2 backflow - 9dm2,

Watts 9dm2 backflow - 9dm2,

$75.00
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Pvc backwater valve - 3",

Pvc backwater valve - 3",

$46.99
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For watts 4 - for, 9d-m2

For watts 4 - for, 9d-m2

$69.49
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For febco backflow preventer - backflow,

For febco backflow preventer - backflow,

$12.99
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Right weigh load scale - weigh, gauge

Right weigh load scale - weigh, gauge

$40.00
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Wilkins 975xl2 in rpz - wilkins, 3/4

Wilkins 975xl2 in rpz - wilkins, 3/4

$399.99
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Zurn wilkins 975xld pressure - zurn,

Zurn wilkins 975xld pressure - zurn,

$300.00
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Brass backflow preventer valve - brass,

Brass backflow preventer valve - brass,

$23.99
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For pvb backflow - for,

For pvb backflow - for,

$73.90
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350 double check backflow - 1-350,

350 double check backflow - 1-350,

$125.96
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Febco 1313 860 reduced - febco,

Febco 1313 860 reduced - febco,

$269.95
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Wilkins valve rpz - 5-valve,

Wilkins valve rpz - 5-valve,

$900.00
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Backflow preventer dual - 9d-m2,

Backflow preventer dual - 9d-m2,

$60.99
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Backwater valve drain - backwater,

Backwater valve drain - backwater,

$60.63
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905 051 check valve - 905-051, repair

905 051 check valve - 905-051, repair

$13.85
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Zurn wilkins 975xl 4 - zurn, 3/4"

Zurn wilkins 975xl 4 - zurn, 3/4"

$369.00
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For pvb backflow preventer - 1",

For pvb backflow preventer - 1",

$73.09
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Pack inch pvc - 2-inch, backwater

Pack inch pvc - 2-inch, backwater

$44.61
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Inch pvc backwater valve - 2,

Inch pvc backwater valve - 2,

$36.99
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Zurn wilkins 38ufx38f - zurn, 38ufx38f-700xl

Zurn wilkins 38ufx38f - zurn, 38ufx38f-700xl

$29.99
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Nexus valve nx2xlck in - nexus,

Nexus valve nx2xlck in - nexus,

$145.00
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📊96 listings · from $10.27 · avg $213.41

Browse 96 backflow valve listings currently in our index. Prices range from $10.27 to $3569.99, with an average of $213.41. 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 $10.27, while premium listings can reach $3569.99 — giving you a wide budget spread to work with. The average price of $213.41 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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