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Caleffi
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Backflow Preventers
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1
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Series
551
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132
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521
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5213
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180
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(2)
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1-9/16 in Dia x 4 in H
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(19)
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175
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Caleffi
Caleffi 502710A Automatic Air Vent, 1/8 in Nominal, MNPT Connection, 150 psi Working, 240 deg F, Brass
Mfr Part #
502710A
Item #
850806
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Caleffi
Caleffi 535361HA 535H Pre-Adjustable Pressure Reducing Valve, 1 in, FNPT, 19 gpm, Forged Brass Body
Mfr Part #
535361HA
Item #
1324780
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Caleffi
Caleffi AutoFillâ„¢ 553542A Pre-Adjustable Automatic Filling Valve, 1/2 in Nominal, MNPT x FNPT End Style, 230 psi Pressure, Brass Body, Import
Mfr Part #
553542A
Item #
256860
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Caleffi
Caleffi VALCAL® 502243A Automatic Air Vent, 1/2 in Nominal, MNPT Connection, 150 psi Max Working, 250 deg F, Brass
Mfr Part #
502243A
Item #
886644
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Caleffi
Caleffi 521342A 3-Way Scald Protection Point-of-Use Thermostatic Mixing Valve With Check Valve, 1/2 in Nominal, MNPT Connection, 150 psi Working, 85 to 120 deg F, Brass
Mfr Part #
521342A
Item #
1072209
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Caleffi
Caleffi 521352A 3-Way Scald Protection Point-of-Use Thermostatic Mixing Valve With Check Valve, 3/4 in, MNPT, 150 psi, 0.5 gpm, Brass Body
Mfr Part #
521352A
Item #
1087282
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Caleffi
Caleffi 535351HA Pre-Adjustable Pressure Reducing Valve, 3/4 in, FNPT x C, 300 psi, 12.5 gpm, DZR Forged Brass Body
Mfr Part #
535351HA
Item #
1324779
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Caleffi
Caleffi 573403A Continuous Backflow Preventer With Atmospheric Vent, 1/2 in Nominal, FNPT End Style, Brass Body, Dual Check
Mfr Part #
573403A
Item #
1057555
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Caleffi
Caleffi 626600A Universal Flow Switch, 5.7 gpm Flow Rate, 150 psi Pressure, -20 to 250 deg F, MNPT Connection
Mfr Part #
626600A
Item #
887225
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Caleffi
Caleffi AutoFillâ„¢ 573012A Pre-Adjustable Combo Automatic Filling Valve, 1/2 in, FNPT, 175 psi, Brass Body
Mfr Part #
573012A
Item #
1477006
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Caleffi
Caleffi DISCALAIR® 551004A High Discharge Automatic Air Vent, 1/2 in Nominal, FNPT Connection, 150 psi Working, 250 deg F, Brass, Import
Mfr Part #
551004A
Item #
868711
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Caleffi
Caleffi DISCAL® 551022A Compact Air Separator, 3/4 in Nominal, Solder Connection, 150 psi Working, 32 to 250 deg F, Brass
Mfr Part #
551022A
Item #
916419
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Caleffi
Caleffi Z-oneâ„¢ Z55 2-Way Motorized Zone Valve, 3/4 in Nominal, C End Style, 300 psi Pressure, 7.5 Cv, 24 VAC
Mfr Part #
Z55
Item #
868725
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Caleffi
Caleffi Z-oneâ„¢ Z56 2-Way Motorized Zone Valve, 1 in Nominal, C End Style, 300 psi Pressure, 7.5 Cv, 24 VAC, Import
Mfr Part #
Z56
Item #
868729
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Caleffi
CALEFFI 127352AF2G2 3/4" AUTO FLOW BALANCING VALVE W/ PROPEX CONN
Item #
1511889
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Caleffi
Caleffi 535371HA 535H Pre-Adjustable Pressure Reducing Valve, 1-1/4 in, FNPT, 34 gpm, Forged Brass Body
Mfr Part #
535371HA
Item #
1324781
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Caleffi
Caleffi DISCAL® 551005A Air Separator, 3/4 in Nominal, FNPT Connection, 150 psi Working, 32 to 250 deg F, Brass
Mfr Part #
551005A
Item #
1434952
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Caleffi
Caleffi DISCAL® 551006A Air Separator, 1 in Nominal, FNPT Connection, 150 psi Working, 32 to 250 deg F, Brass
Mfr Part #
551006A
Item #
1057551
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Caleffi
Caleffi DISCAL® 551028A Air Separator, 1 in Nominal, Solder Connection, 150 psi Working, 32 to 250 deg F, Brass
Mfr Part #
551028A
Item #
928331
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Caleffi
Caleffi MixCalâ„¢ 521509A Adjustable 3-Way Thermostatic and Pressure Balanced Mixing Valve, 3/4 in, C, 200 psi, 1.3 gpm, Brass Body
Mfr Part #
521509A
Item #
910070
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