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Backflow preventer

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Backflow preventer for sale on largest auction and classifieds sites

Home / Plumbing & Fixtures / Backflow preventer refurbished & used for sale | For Sale USA
Zurn wilkins 975xl2 1 - zurn,

Zurn wilkins 975xl2 1 - zurn,

$460.00
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Zurn wilkins 975xl2 4 - wilkins, 34-975xl2

Zurn wilkins 975xl2 4 - wilkins, 34-975xl2

$375.00
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Sandbaggy durable backflow - sandbaggy,

Sandbaggy durable backflow - sandbaggy,

$981.18
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Zurn wilkins 975xl2 - 1-975xl2, 1"

Zurn wilkins 975xl2 - 1-975xl2, 1"

$425.00
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975xl2 reduced - 3/4",

975xl2 reduced - 3/4",

$280.25
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Steel high capacity - high, 1/2"

Steel high capacity - high, 1/2"

$26.99
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350 double check - check, backflow

350 double check - check, backflow

$138.00
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Febco 765 pvb 1in - febco, 765-qt-fz

Febco 765 pvb 1in - febco, 765-qt-fz

$79.99
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Zurn wilkins 975xl2 - zurn, 3/4"

Zurn wilkins 975xl2 - zurn, 3/4"

$449.00
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Zurn wilkins 350xl - zurn,

Zurn wilkins 350xl - zurn,

$199.00
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Watts bronze double check - 1”,

Watts bronze double check - 1”,

$145.00
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Zurn wilkins 720a - 1-720a, 1"

Zurn wilkins 720a - 1-720a, 1"

$98.00
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Zurn wilkins 1 - wilkins, 1"

Zurn wilkins 1 - wilkins, 1"

$419.99
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Watts lf009 2 - 1/2, rpz

Watts lf009 2 - 1/2, rpz

$260.00
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Backflow preventer febco - backflow,

Backflow preventer febco - backflow,

$89.99
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009m3 qt backflow - 3/4",

009m3 qt backflow - 3/4",

$209.24
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350 double check - 3/4",

350 double check - 3/4",

$119.40
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Zurn 950xlt2 wilkins double - zurn, 1-950xlt2

Zurn 950xlt2 wilkins double - zurn, 1-950xlt2

$250.00
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Watts 719qt series - 719qt,

Watts 719qt series - 719qt,

$99.99
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Zurn wilkins 975xl2 rpz - zurn,

Zurn wilkins 975xl2 rpz - zurn,

$430.00
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Watts bbfp inch edp - watts,

Watts bbfp inch edp - watts,

$49.99
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Febco 860 rp reduced - 860-qt,

Febco 860 rp reduced - 860-qt,

$362.65
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Watts bronze double - watts,

Watts bronze double - watts,

$144.95
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Zurn wilkins 950xlt2 175 - wilkins, 1"

Zurn wilkins 950xlt2 175 - wilkins, 1"

$239.99
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Watts bronze double - in.,

Watts bronze double - in.,

$130.00
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Watts b911s m3 - 1/2", b911s-m3

Watts b911s m3 - 1/2", b911s-m3

$159.99
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Zurn wilkins double check - wilkins,

Zurn wilkins double check - wilkins,

$200.00
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Watts bronze quarter - in.,

Watts bronze quarter - in.,

$197.88
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Zurn wilkins 975xl2 2 - zurn,

Zurn wilkins 975xl2 2 - zurn,

$325.00
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Zurn 34375xl wilkins inch - 3/4,

Zurn 34375xl wilkins inch - 3/4,

$359.00
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975xl2 reduced - 3/4",

975xl2 reduced - 3/4",

$300.00
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Watts lf009m3 4 in rpz - 3/4,

Watts lf009m3 4 in rpz - 3/4,

$380.00
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720a pressure vacuum - 3/4",

720a pressure vacuum - 3/4",

$60.17
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Watts backflow preventer - watts,

Watts backflow preventer - watts,

$350.00
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Watts reduced pressure zone - 1",

Watts reduced pressure zone - 1",

$344.00
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Pvc backflow preventer - 4,

Pvc backflow preventer - 4,

$48.94
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Zurn 950xl double - zurn,

Zurn 950xl double - zurn,

$319.98
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Zurn wilkins double check - wilkins,

Zurn wilkins double check - wilkins,

$209.99
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Watts 800m4qt 1 - watts, 800m4qt-1"

Watts 800m4qt 1 - watts, 800m4qt-1"

$144.99
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Watts bronze quarter - watts,

Watts bronze quarter - watts,

$225.00
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Watts lf009m3 qt fs - 3/4", lf009m3-qt-fs

Watts lf009m3 qt fs - 3/4", lf009m3-qt-fs

$216.09
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Backflow preventer febco - preventer,

Backflow preventer febco - preventer,

$99.98
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009m3 backflow preventer - backflow,

009m3 backflow preventer - backflow,

$191.25
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Caleffi 573403a backflow - caleffi,

Caleffi 573403a backflow - caleffi,

$76.71
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Complete repair kit - complete,

Complete repair kit - complete,

$22.49
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Watts sd3 stainless dual - sd3,

Watts sd3 stainless dual - sd3,

$169.00
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Febco bronze pressure - bronze,

Febco bronze pressure - bronze,

$100.00
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350 double check backflow - check,

350 double check backflow - check,

$138.00
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Watts bronze reduced - 1, in.

Watts bronze reduced - 1, in.

$347.88
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Zurn 875xl rpz reduced - zurn,

Zurn 875xl rpz reduced - zurn,

$250.00
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Febco pressure vacuum - pressure,

Febco pressure vacuum - pressure,

$87.00
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Watts bronze reduced - watts,

Watts bronze reduced - watts,

$299.99
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Febco 860 reduced - 860-qt-fs, 1"

Febco 860 reduced - 860-qt-fs, 1"

$449.99
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Watts bronze double - watts, 3/4

Watts bronze double - watts, 3/4

$154.89
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Watts 719qt series 719 in - series,

Watts 719qt series 719 in - series,

$159.99
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Bronze double check - bronze,

Bronze double check - bronze,

$95.34
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Zurn wilkins - zurn, /

Zurn wilkins - zurn, /

$29.50
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Zurn wilkins 350 double - zurn, 1”

Zurn wilkins 350 double - zurn, 1”

$169.95
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Watts regulator 2lf007m1 fz - watts,

Watts regulator 2lf007m1 fz - watts,

$795.00
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Watts double check valve - 1,

Watts double check valve - 1,

$164.88
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Watts bronze reduced - watts,

Watts bronze reduced - watts,

$329.95
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Watts bronze quarter - 1, in.

Watts bronze quarter - 1, in.

$153.99
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Watts regulator delta lite - delta,

Watts regulator delta lite - delta,

$499.00
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Febco 765 4 - febco, 765-qt-fz

Febco 765 4 - febco, 765-qt-fz

$74.80
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Rpz backflow preventer - backflow,

Rpz backflow preventer - backflow,

$139.99
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Watts lf009 2 - watts, 2"

Watts lf009 2 - watts, 2"

$924.00
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M3 backflow preventer - 1/2",

M3 backflow preventer - 1/2",

$26.95
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Watts 3 stainless - 3/8",

Watts 3 stainless - 3/8",

$175.00
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Febco bronze pressure - febco, in

Febco bronze pressure - febco, in

$79.80
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Febco 1in bronze - bronze, pressure

Febco 1in bronze - bronze, pressure

$97.89
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Watts bronze reduced - watts, in.

Watts bronze reduced - watts, in.

$269.40
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Watts regulator 007 qt - regulator, 1/2"

Watts regulator 007 qt - regulator, 1/2"

$166.49
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Zurn wilkins 112 - wilkins, 112-975xl2ag

Zurn wilkins 112 - wilkins, 112-975xl2ag

$874.99
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Watts tk99e valve backflow - watts, 5

Watts tk99e valve backflow - watts, 5

$699.99
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Watts lead free rpz - watts,

Watts lead free rpz - watts,

$475.00
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Wilkins 975xl2 lead free - 2,

Wilkins 975xl2 lead free - 2,

$1002.50
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350 double check backflow - 1-350,

350 double check backflow - 1-350,

$102.00
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Zurn wilkins 950xlt2 - 1", 175

Zurn wilkins 950xlt2 - 1", 175

$245.00
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Zurn wilkins 350xl - zurn, 3/4”

Zurn wilkins 350xl - zurn, 3/4”

$149.40
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009m3 qt backflow - 3/4",

009m3 qt backflow - 3/4",

$219.99
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Watts lf288a lead - watts, 1/2"

Watts lf288a lead - watts, 1/2"

$49.99
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Febco 850 dc - dc, double

Febco 850 dc - dc, double

$244.35
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Watts lf009m3 qt fs - watts, lf009m3-qt-fs

Watts lf009m3 qt fs - watts, lf009m3-qt-fs

$423.99
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950xlt2 double check - 1,

950xlt2 double check - 1,

$180.00
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720a pressure vacuum - 1",

720a pressure vacuum - 1",

$79.99
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Zurn wilkins 740f stainless - wilkins,

Zurn wilkins 740f stainless - wilkins,

$169.00
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Zurn wilkins 950xlt2 double - zurn,

Zurn wilkins 950xlt2 double - zurn,

$173.21
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Watts bronze double - watts,

Watts bronze double - watts,

$179.88
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2pcs npt female spring - 3/4",

2pcs npt female spring - 3/4",

$33.99
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Zurn wilkins 720a - zurn,

Zurn wilkins 720a - zurn,

$105.98
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Wilkins rk4 350pk repair kit - repair, 4

Wilkins rk4 350pk repair kit - repair, 4

$100.50
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Pcs 2 inch backwater - 1-1/2,

Pcs 2 inch backwater - 1-1/2,

$30.92
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Zurn wilkins 350xl 4 inch - wilkins, 34-350xl

Zurn wilkins 350xl 4 inch - wilkins, 34-350xl

$189.99
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Zurn 950xlt2 wilkins double - zurn,

Zurn 950xlt2 wilkins double - zurn,

$498.90
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Watts backflow prevention - watts,

Watts backflow prevention - watts,

$350.00
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Backflow preventer security - preventer,

Backflow preventer security - preventer,

$350.00
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Looking for more backflow preventer?

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📊96 listings · from $22.49 · avg $249.72

Browse 96 backflow preventer listings currently in our index. Prices range from $22.49 to $1002.5, with an average of $249.72. 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 preventer →

Try this: watts 009 | hand wash sink | hand washing sink | mop sink | vintage glass towel rod | portable 3 compartment sink | greenlee 555 | greenlee 855 | american standard pink toilet | ridgid 1224

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Everything you need to know about backflow preventer

Whether you are looking for a brand-new or second-hand backflow preventer, 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 $22.49, while premium listings can reach $1002.5 — giving you a wide budget spread to work with. The average price of $249.72 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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