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Mid west instruments - mid-west, 845
$500.00
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Apollo valves 200 tk5u - valves, 40-200-tk5u
$550.00
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Mid west 890 - test, double
$315.00
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Watts backflow preventer - tk-9a,
$275.00
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Mid west instruments - mid-west,
$595.00
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Midwest instruments backflow - midwest,
$600.00
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Astra industrial services - industrial, pro
$349.95
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Gage backflow test - ~,
$159.99
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Watts backflow preventer - tk-9a,
$250.00
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Watts backflow preventer - watts,
$449.95
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Wsc instrument 845 - instrument, 3-valve
$500.00
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Eastern 805tk double check - 805tk,
$130.00
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Watts 99e backflow test - ~,
$119.99
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Mid west instrument - mid-west,
$1200.00
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Mako arbiter mk3 - mako, 3-valve
$599.99
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Mid west instruments 845 - instruments,
$925.00
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Apollo valves 200 tk5u - valves, 40-200-tk5u
$650.00
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Backflow test kit hoses - 4, 3/8"
$69.99
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Midwest instruments backflow - midwest,
$1199.99
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Wilkins valve rpz - wilkins,
$600.00
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Midwest back flow test - midwest,
$599.00
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Watts backflow test - watts,
$149.00
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Midwest model 830 - model, reduced
$249.99
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Watts regulator delta lite - regulator, tk
$499.00
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Mid west instrument - instrument, 890
$300.00
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Midwest instrument 110645 - midwest,
$306.33
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Mid west instrument - instrument, test
$333.33
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Mid west instrument 830 - instrument,
$900.00
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Mid west instrument model 890 - mid-west,
$200.00
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Mid west instrument model 890 - model,
$199.99
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Bac flo valve gauge - valve,
$1065.00
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Midwest instrument 835 - midwest,
$1680.99
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Wilkins rpz backflow test - rpz,
$1200.00
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Watts backflow preventer - watts,
$341.99
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Backflow test kit for - test,
$700.00
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Backflow test kit with - tk-13,
$999.00
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Backflow single valve - mr.,
$795.00
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Midwest model 830 reduced - midwest,
$200.00
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Midwest instrument 110645 - midwest,
$234.99
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Bac flo digital valve - 3,
$1540.00
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Midwest instrument 110646 - midwest,
$227.07
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Midwest reduced pressure - reduced,
$1397.54
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Watts regulator backflow - watts,
$450.00
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Watts computerized - tk-dp,
$1190.00
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Midwest instrument 110646 - midwest,
$306.33
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Mid west instrument model 890 - model,
$170.00
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Watts backflow test - watts,
$350.00
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Bac flo valve gauge - flo, 3
$1065.00
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Watts regulator backflow - watts, dr
$790.00
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Vintage watts regulator - watts,
$314.99
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Midwest instrument backflow - ,
$1412.12
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Watts regulator backflow - regulator, tk-9a
$554.48
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Watts backflow preventer - backflow,
$699.99
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Mid west 890 - 890, double
$189.00
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Zurn wilkins 3 valve - zurn, 3-valve
$900.00
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Backflow test kit - test,
$1550.00
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Bac flo backflow - bac, prevention
$182.00
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Watts regulator tk dp - co., tk-dp
$4200.00
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Watts backflow preventer - watts, tk-9a
$750.00
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Watts 99d delta lite - watts,
$6080.00
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Midwest instrument 110646 - midwest,
$239.99
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Watts backflow preventer - watts,
$3508.99
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Watts tk9a backflow preventer - watts,
$1225.00
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For febco 3 4 - for, 3/4"
$21.67
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For febco 3 4 - febco, &
$20.35
Buy It Now
Looking for more backflow test kit?
Search eBay live — fresh results filtered for the best value, updated every hour.
Browse 65 backflow test kit listings currently in our index. Prices range from $20.35 to $6080, with an average of $774.28. 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 test kit →
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Whether you are looking for a brand-new or second-hand backflow test kit, eBay offers one of the largest selections available online. With 65 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 $20.35, while premium listings can reach $6080 — giving you a wide budget spread to work with. The average price of $774.28 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.