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    Backflow & check valves are available in a choice of either single, double, swing or backflow options made from either brass or DZR with compression or BSP connections. Sizes available from BES include 3/8" to 4"

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    Single Check Valve 110°C - 4" BSP Single Check Valve 110°C - 4" BSP Single Check Valve 110°C - 4" BSP
    Single Check Valve 110°C - 4" BSP Part Number: 7531
    £115.90 £96.58
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    Single Check Valve 110°C - 3" BSP Single Check Valve 110°C - 3" BSP Single Check Valve 110°C - 3" BSP
    Single Check Valve 110°C - 3" BSP Part Number: 7530
    £68.17 £56.81
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    Single Check Valve 110°C - 2.1/2" BSP Single Check Valve 110°C - 2.1/2" BSP Single Check Valve 110°C - 2.1/2" BSP
    Single Check Valve 110°C - 2.1/2" BSP Part Number: 7529
    £50.46 £42.05
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    Single Check Valve 110°C - 1.1/4" BSP Single Check Valve 110°C - 1.1/4" BSP Single Check Valve 110°C - 1.1/4" BSP
    Single Check Valve 110°C - 1.1/4" BSP Part Number: 7526
    £11.50 £9.58
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    Single Check Valve 110°C - 1" BSP Single Check Valve 110°C - 1" BSP Single Check Valve 110°C - 1" BSP
    Single Check Valve 110°C - 1" BSP Part Number: 7525
    £8.26 £6.88
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    Single Check Valve 110°C - 1/2" BSP Single Check Valve 110°C - 1/2" BSP Single Check Valve 110°C - 1/2" BSP
    Single Check Valve 110°C - 1/2" BSP Part Number: 7523
    £3.13 £2.61
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    Single Check Valve 110°C - 1/4" BSP Single Check Valve 110°C - 1/4" BSP Single Check Valve 110°C - 1/4" BSP
    Single Check Valve 110°C - 1/4" BSP Part Number: 7521
    £6.35 £5.29
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    Water Swing Check Valve - Brass 3/8" BSP Water Swing Check Valve - Brass 3/8" BSP Water Swing Check Valve - Brass 3/8" BSP
    Water Swing Check Valve - Brass 3/8" BSP Part Number: 7518
    £3.94 £3.28
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    Water Swing Check Valve - Brass 2" BSP Water Swing Check Valve - Brass 2" BSP Water Swing Check Valve - Brass 2" BSP
    Water Swing Check Valve - Brass 2" BSP Part Number: 7467
    £35.51 £29.59
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    Water Swing Check Valve - Brass 1.1/4" BSP Water Swing Check Valve - Brass 1.1/4" BSP Water Swing Check Valve - Brass 1.1/4" BSP
    Water Swing Check Valve - Brass 1.1/4" BSP Part Number: 7465
    £16.97 £14.14
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    Water Swing Check Valve - Brass 1/2" BSP Water Swing Check Valve - Brass 1/2" BSP Water Swing Check Valve - Brass 1/2" BSP
    Water Swing Check Valve - Brass 1/2" BSP Part Number: 7462
    £5.62 £4.68
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    Single Check Valve 110°C - 2" BSP Single Check Valve 110°C - 2" BSP Single Check Valve 110°C - 2" BSP
    Single Check Valve 110°C - 2" BSP Part Number: 7528
    £24.82 £20.68
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    Single Check Valve 110°C - 1.1/2" BSP Single Check Valve 110°C - 1.1/2" BSP Single Check Valve 110°C - 1.1/2" BSP
    Single Check Valve 110°C - 1.1/2" BSP Part Number: 7527
    £15.36 £12.80
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    Single Check Valve 110°C - 3/4" BSP Single Check Valve 110°C - 3/4" BSP Single Check Valve 110°C - 3/4" BSP
    Single Check Valve 110°C - 3/4" BSP Part Number: 7524
    £4.54 £3.78
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    Single Check Valve 110°C - 3/8" BSP Single Check Valve 110°C - 3/8" BSP Single Check Valve 110°C - 3/8" BSP
    Single Check Valve 110°C - 3/8" BSP Part Number: 7522
    £5.02 £4.18
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    Water Swing Check Valve - Brass 4" BSP Water Swing Check Valve - Brass 4" BSP Water Swing Check Valve - Brass 4" BSP
    Water Swing Check Valve - Brass 4" BSP Part Number: 7520
    £93.17 £77.64
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    Water Swing Check Valve - Brass 3" BSP Water Swing Check Valve - Brass 3" BSP Water Swing Check Valve - Brass 3" BSP
    Water Swing Check Valve - Brass 3" BSP Part Number: 7519
    £65.93 £54.94
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    Water Swing Check Valve - Brass 2.1/2" BSP Water Swing Check Valve - Brass 2.1/2" BSP Water Swing Check Valve - Brass 2.1/2" BSP
    Water Swing Check Valve - Brass 2.1/2" BSP Part Number: 7468
    £61.45 £51.21
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    Water Swing Check Valve - Brass 1.1/2" BSP Water Swing Check Valve - Brass 1.1/2" BSP Water Swing Check Valve - Brass 1.1/2" BSP
    Water Swing Check Valve - Brass 1.1/2" BSP Part Number: 7466
    £27.36 £22.80
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    Water Swing Check Valve - Brass 1" BSP Water Swing Check Valve - Brass 1" BSP Water Swing Check Valve - Brass 1" BSP
    Water Swing Check Valve - Brass 1" BSP Part Number: 7464
    £12.29 £10.24
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    Water Swing Check Valve - Brass 3/4" BSP Water Swing Check Valve - Brass 3/4" BSP Water Swing Check Valve - Brass 3/4" BSP
    Water Swing Check Valve - Brass 3/4" BSP Part Number: 7463
    £7.36 £6.13
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