Backflow Preventers

Filter

Search Within Category

: Show In Stock Items Only
: Ames Fire & Waterworks® (2)
Apollo™ (600)
Spirax Sarco (2)
WATTS® (54)
: Apollo RPLF4A Series Reduced Pressure Principle Backflow Preventers (61)
: 1/4 in (1)
3/8 in (2)
1/2 in (18)
1/2 x 1/8 in (2)
3/4 in (37)
1 in (33)
1-1/4 in (15)
1-1/2 in (26)
2 in (29)
2-1/2 in (55)
: FNPT (47)
Female Hose Threaded x Male Hose Threaded (2)
Female Meter Swivel x FNPT (2)
Female Meter Swivel x MNPT (1)
Flanged (1)
Grooved (2)
MNPT (7)
MNPT x FNPT (2)
Monitored Butterfly Valve Groove (73)
Monitored Butterfly Valve Groove x Post Indicator Flange (1)
: Outside Stem and Yoke Resilient Seated Gate Valve (1)
Quarter-Turn Ball Valve (43)
Resilient Seated Gate Valve (3)
Shut-Off Ball Valve (13)
: 304 Stainless Steel (422)
Brass (7)
Bronze (140)
Cast Bronze (1)
Cast Copper Silicon Alloy (22)
Cast Iron (1)
Copper Silicon Alloy (13)
Ductile Iron (39)
Forged Brass (8)
Lead Free Copper Silicon Alloy (5)
: Dual Check (328)
Pressure Vacuum Breaker (4)
Reduced Pressure (278)
Reduced Pressure Zone (15)
: 7.5 fps (2)
: Domestic (624)
Import (3)

658 items

Sort by:

show:

content loaded

Compare

Apollo™ 4ALF620C4 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Flanged x Monitored Butterfly Valve Groove End Style, 304 Stainless Steel Body, Dual Check, Domestic

CBPN:

247187

MPN:

4ALF620C4

Price:

$12769.57 / EA

QTY

Prop 65:

Price:

$12769.57 / EA

QTY

Compare

Apollo™ 4ALF620C6 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Flanged x Post Indicator Flanged End Style, 304 Stainless Steel Body, Dual Check, Domestic

CBPN:

247188

MPN:

4ALF620C6

Price:

$5262.38 / EA

QTY

Prop 65:

Price:

$5262.38 / EA

QTY

Compare

Apollo™ 4ALF620C7 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Flanged x Outside Stem and Yoke Groove End Style, 304 Stainless Steel Body, Dual Check, Domestic

CBPN:

247189

MPN:

4ALF620C7

Price:

$11678.12 / EA

QTY

Prop 65:

Price:

$11678.12 / EA

QTY

Compare

Apollo™ 4ALF620E3 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Flanged End Style, 304 Stainless Steel Body, Dual Check, Domestic

CBPN:

247190

MPN:

4ALF620E3

Price:

$5262.38 / EA

QTY

Prop 65:

Price:

$5262.38 / EA

QTY

Compare

Apollo™ 4ALF620E4 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Flanged x Monitored Butterfly Valve Groove End Style, 304 Stainless Steel Body, Dual Check, Domestic

CBPN:

247191

MPN:

4ALF620E4

Price:

$12769.57 / EA

QTY

Prop 65:

Price:

$12769.57 / EA

QTY

Compare

Apollo™ 4ALF620E6 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Flanged x Post Indicator Flanged End Style, 304 Stainless Steel Body, Dual Check, Domestic

CBPN:

247192

MPN:

4ALF620E6

Price:

$5262.38 / EA

QTY

Prop 65:

Price:

$5262.38 / EA

QTY

Compare

Apollo™ 4ALF620E7 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Flanged x Outside Stem and Yoke Groove End Style, 304 Stainless Steel Body, Dual Check, Domestic

CBPN:

247193

MPN:

4ALF620E7

Price:

$11678.12 / EA

QTY

Prop 65:

Price:

$11678.12 / EA

QTY

Compare

Apollo™ 4ALF620E8 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Groove End Style, 304 Stainless Steel Body, Dual Check, Domestic

CBPN:

247194

MPN:

4ALF620E8

Price:

$11678.12 / EA

QTY

Prop 65:

Price:

$11678.12 / EA

QTY

Compare

Apollo™ 4ALF620G3 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Flanged End Style, 304 Stainless Steel Body, Dual Check, Domestic

CBPN:

247195

MPN:

4ALF620G3

Price:

$5139.46 / EA

QTY

Prop 65:

Price:

$5139.46 / EA

QTY

Compare

Apollo™ 4ALF620G4 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Flanged x Monitored Butterfly Valve Groove End Style, 304 Stainless Steel Body, Dual Check, Domestic

CBPN:

247196

MPN:

4ALF620G4

Price:

$12496.65 / EA

QTY

Prop 65:

Price:

$12496.65 / EA

QTY

Compare

Apollo™ 4ALF620G6 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Flanged x Post Indicator Flanged End Style, 304 Stainless Steel Body, Dual Check, Domestic

CBPN:

247197

MPN:

4ALF620G6

Price:

$5139.46 / EA

QTY

Prop 65:

Price:

$5139.46 / EA

QTY

Compare

Apollo™ 4ALF620G7 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Flanged x Outside Stem and Yoke Groove End Style, 304 Stainless Steel Body, Dual Check, Domestic

CBPN:

247198

MPN:

4ALF620G7

Price:

$11405.31 / EA

QTY

Prop 65:

Price:

$11405.31 / EA

QTY

Compare

Apollo™ 4ALF620G8 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Groove End Style, 304 Stainless Steel Body, Dual Check, Domestic

CBPN:

247199

MPN:

4ALF620G8

Price:

$11405.31 / EA

QTY

Prop 65:

Price:

$11405.31 / EA

QTY

Compare

Apollo™ 4ALF628C2ST DCDA2LF4A Backflow Preventer With Slow-Close Ball Valve and Bypass Line On Right Side, 2 in Nominal, Bronze Body, Dual Check

CBPN:

246471

MPN:

4ALF628C2ST

Prop 65:

Compare

Apollo™ 4ALF629C3 DCDALF4A Type 2 Backflow Preventer, 2-1/2 in Nominal, Outside Stem and Yoke Flanged End Style, 304 Stainless Steel Body, Dual Check, Domestic

CBPN:

247200

MPN:

4ALF629C3

Price:

$4991.88 / EA

QTY

Prop 65:

Price:

$4991.88 / EA

QTY

Compare

Apollo™ 4ALF620C4 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Flanged x Monitored Butterfly Valve Groove End Style, 304 Stainless Steel Body, Dual Check, Domestic

CBPN:

247187

MPN:

4ALF620C4

Prop 65:

Price:

$12769.57 / EA

QTY

Compare

Apollo™ 4ALF620C6 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Flanged x Post Indicator Flanged End Style, 304 Stainless Steel Body, Dual Check, Domestic

CBPN:

247188

MPN:

4ALF620C6

Prop 65:

Price:

$5262.38 / EA

QTY

Compare

Apollo™ 4ALF620C7 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Flanged x Outside Stem and Yoke Groove End Style, 304 Stainless Steel Body, Dual Check, Domestic

CBPN:

247189

MPN:

4ALF620C7

Prop 65:

Price:

$11678.12 / EA

QTY

Compare

Apollo™ 4ALF620E3 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Flanged End Style, 304 Stainless Steel Body, Dual Check, Domestic

CBPN:

247190

MPN:

4ALF620E3

Prop 65:

Price:

$5262.38 / EA

QTY

Compare

Apollo™ 4ALF620E4 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Flanged x Monitored Butterfly Valve Groove End Style, 304 Stainless Steel Body, Dual Check, Domestic

CBPN:

247191

MPN:

4ALF620E4

Prop 65:

Price:

$12769.57 / EA

QTY

Compare

Apollo™ 4ALF620E6 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Flanged x Post Indicator Flanged End Style, 304 Stainless Steel Body, Dual Check, Domestic

CBPN:

247192

MPN:

4ALF620E6

Prop 65:

Price:

$5262.38 / EA

QTY

Compare

Apollo™ 4ALF620E7 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Flanged x Outside Stem and Yoke Groove End Style, 304 Stainless Steel Body, Dual Check, Domestic

CBPN:

247193

MPN:

4ALF620E7

Prop 65:

Price:

$11678.12 / EA

QTY

Compare

Apollo™ 4ALF620E8 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Groove End Style, 304 Stainless Steel Body, Dual Check, Domestic

CBPN:

247194

MPN:

4ALF620E8

Prop 65:

Price:

$11678.12 / EA

QTY

Compare

Apollo™ 4ALF620G3 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Flanged End Style, 304 Stainless Steel Body, Dual Check, Domestic

CBPN:

247195

MPN:

4ALF620G3

Prop 65:

Price:

$5139.46 / EA

QTY

Compare

Apollo™ 4ALF620G4 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Flanged x Monitored Butterfly Valve Groove End Style, 304 Stainless Steel Body, Dual Check, Domestic

CBPN:

247196

MPN:

4ALF620G4

Prop 65:

Price:

$12496.65 / EA

QTY

Compare

Apollo™ 4ALF620G6 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Flanged x Post Indicator Flanged End Style, 304 Stainless Steel Body, Dual Check, Domestic

CBPN:

247197

MPN:

4ALF620G6

Prop 65:

Price:

$5139.46 / EA

QTY

Compare

Apollo™ 4ALF620G7 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Flanged x Outside Stem and Yoke Groove End Style, 304 Stainless Steel Body, Dual Check, Domestic

CBPN:

247198

MPN:

4ALF620G7

Prop 65:

Price:

$11405.31 / EA

QTY

Compare

Apollo™ 4ALF620G8 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Groove End Style, 304 Stainless Steel Body, Dual Check, Domestic

CBPN:

247199

MPN:

4ALF620G8

Prop 65:

Price:

$11405.31 / EA

QTY

Compare

Apollo™ 4ALF628C2ST DCDA2LF4A Backflow Preventer With Slow-Close Ball Valve and Bypass Line On Right Side, 2 in Nominal, Bronze Body, Dual Check

This item has been discontinued by the manufacturer

Prop 65:

Compare

Apollo™ 4ALF629C3 DCDALF4A Type 2 Backflow Preventer, 2-1/2 in Nominal, Outside Stem and Yoke Flanged End Style, 304 Stainless Steel Body, Dual Check, Domestic

CBPN:

247200

MPN:

4ALF629C3

Prop 65:

Price:

$4991.88 / EA

QTY

show:

Backflow Preventers

Filter

Apollo™ 4ALF620C4 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Flanged x Monitored Butterfly Valve Groove End Style, 304 Stainless Steel Body, Dual Check, Domestic

Apollo™ 4ALF620C6 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Flanged x Post Indicator Flanged End Style, 304 Stainless Steel Body, Dual Check, Domestic

Apollo™ 4ALF620C7 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Flanged x Outside Stem and Yoke Groove End Style, 304 Stainless Steel Body, Dual Check, Domestic

Apollo™ 4ALF620E3 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Flanged End Style, 304 Stainless Steel Body, Dual Check, Domestic

Apollo™ 4ALF620E4 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Flanged x Monitored Butterfly Valve Groove End Style, 304 Stainless Steel Body, Dual Check, Domestic

Apollo™ 4ALF620E6 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Flanged x Post Indicator Flanged End Style, 304 Stainless Steel Body, Dual Check, Domestic

Apollo™ 4ALF620E7 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Flanged x Outside Stem and Yoke Groove End Style, 304 Stainless Steel Body, Dual Check, Domestic

Apollo™ 4ALF620E8 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Groove End Style, 304 Stainless Steel Body, Dual Check, Domestic

Apollo™ 4ALF620G3 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Flanged End Style, 304 Stainless Steel Body, Dual Check, Domestic

Apollo™ 4ALF620G4 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Flanged x Monitored Butterfly Valve Groove End Style, 304 Stainless Steel Body, Dual Check, Domestic

Apollo™ 4ALF620G6 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Flanged x Post Indicator Flanged End Style, 304 Stainless Steel Body, Dual Check, Domestic

Apollo™ 4ALF620G7 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Flanged x Outside Stem and Yoke Groove End Style, 304 Stainless Steel Body, Dual Check, Domestic

Apollo™ 4ALF620G8 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Groove End Style, 304 Stainless Steel Body, Dual Check, Domestic

Apollo™ 4ALF628C2ST DCDA2LF4A Backflow Preventer With Slow-Close Ball Valve and Bypass Line On Right Side, 2 in Nominal, Bronze Body, Dual Check

Apollo™ 4ALF629C3 DCDALF4A Type 2 Backflow Preventer, 2-1/2 in Nominal, Outside Stem and Yoke Flanged End Style, 304 Stainless Steel Body, Dual Check, Domestic

Apollo™ 4ALF620C4 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Flanged x Monitored Butterfly Valve Groove End Style, 304 Stainless Steel Body, Dual Check, Domestic

Apollo™ 4ALF620C6 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Flanged x Post Indicator Flanged End Style, 304 Stainless Steel Body, Dual Check, Domestic

Apollo™ 4ALF620C7 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Flanged x Outside Stem and Yoke Groove End Style, 304 Stainless Steel Body, Dual Check, Domestic

Apollo™ 4ALF620E3 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Flanged End Style, 304 Stainless Steel Body, Dual Check, Domestic

Apollo™ 4ALF620E4 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Flanged x Monitored Butterfly Valve Groove End Style, 304 Stainless Steel Body, Dual Check, Domestic

Apollo™ 4ALF620E6 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Flanged x Post Indicator Flanged End Style, 304 Stainless Steel Body, Dual Check, Domestic

Apollo™ 4ALF620E7 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Flanged x Outside Stem and Yoke Groove End Style, 304 Stainless Steel Body, Dual Check, Domestic

Apollo™ 4ALF620E8 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Groove End Style, 304 Stainless Steel Body, Dual Check, Domestic

Apollo™ 4ALF620G3 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Flanged End Style, 304 Stainless Steel Body, Dual Check, Domestic

Apollo™ 4ALF620G4 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Flanged x Monitored Butterfly Valve Groove End Style, 304 Stainless Steel Body, Dual Check, Domestic

Apollo™ 4ALF620G6 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Flanged x Post Indicator Flanged End Style, 304 Stainless Steel Body, Dual Check, Domestic

Apollo™ 4ALF620G7 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Flanged x Outside Stem and Yoke Groove End Style, 304 Stainless Steel Body, Dual Check, Domestic

Apollo™ 4ALF620G8 DCDALF4A Type 2 Backflow Preventer, 3 in Nominal, Outside Stem and Yoke Groove End Style, 304 Stainless Steel Body, Dual Check, Domestic

Apollo™ 4ALF628C2ST DCDA2LF4A Backflow Preventer With Slow-Close Ball Valve and Bypass Line On Right Side, 2 in Nominal, Bronze Body, Dual Check

This item has been discontinued by the manufacturer

Apollo™ 4ALF629C3 DCDALF4A Type 2 Backflow Preventer, 2-1/2 in Nominal, Outside Stem and Yoke Flanged End Style, 304 Stainless Steel Body, Dual Check, Domestic

My Account

Support

SPECIALTY SERVICES

Contact Us