Siemens Non-spring return Spring return
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![Siemens B312UC-SA126.5K BFV 3W 12" 50PSI 24VAC 2 POS HTR CONFIG C | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/B312UC-SA126.5K_medium.jpg?v=1720023124)
B312UC-SA126.5K | BFV 3W 12" 50PSI 24VAC 2 POS HTR CONFIG C | Siemens
Brand: Siemens
SKU: B312UC-SA126.5K
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![Siemens B312UB-SA126.5K BFV 3W 12" 50PSI 24VAC 2 POS HTR CONFIG B | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/B312UB-SA126.5K_medium.jpg?v=1720023131)
B312UB-SA126.5K | BFV 3W 12" 50PSI 24VAC 2 POS HTR CONFIG B | Siemens
Brand: Siemens
SKU: B312UB-SA126.5K
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![Siemens B304UC-SA166.600 BFV 3W 4" 50PSI 24VAC MOD HTR CONFIG C | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/B304UC-SA166.600_medium.jpg?v=1720022996)
B304UC-SA166.600 | BFV 3W 4" 50PSI 24VAC MOD HTR CONFIG C | Siemens
Brand: Siemens
SKU: B304UC-SA166.600
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![Siemens B304UA-SA166.600 BFV 3W 4" 50PSI 24VAC MOD HTR CONFIG A | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/B304UA-SA166.600_medium.jpg?v=1720022995)
B304UA-SA166.600 | BFV 3W 4" 50PSI 24VAC MOD HTR CONFIG A | Siemens
Brand: Siemens
SKU: B304UA-SA166.600
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![Siemens B304UB-SA166.600 BFV 3W 4" 50PSI 24VAC MOD HTR CONFIG B | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/B304UB-SA166.600_medium.jpg?v=1720023071)
B304UB-SA166.600 | BFV 3W 4" 50PSI 24VAC MOD HTR CONFIG B | Siemens
Brand: Siemens
SKU: B304UB-SA166.600
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![Siemens B314UD-SA126.5K BFV 3W 14" 50PSI 24VAC 2 POS HTR CONFIG D | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/B314UD-SA126.5K_medium.jpg?v=1720023116)
B314UD-SA126.5K | BFV 3W 14" 50PSI 24VAC 2 POS HTR CONFIG D | Siemens
Brand: Siemens
SKU: B314UD-SA126.5K
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![Siemens B314UB-SA126.5K BFV 3W 14" 50PSI 24VAC 2 POS HTR CONFIG B | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/B314UB-SA126.5K_medium.jpg?v=1720023159)
B314UB-SA126.5K | BFV 3W 14" 50PSI 24VAC 2 POS HTR CONFIG B | Siemens
Brand: Siemens
SKU: B314UB-SA126.5K
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![Siemens B310UB-SA126.2K BFV 3W 10" 50PSI 24VAC 2 POS HTR CONFIG B | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/B310UB-SA126.2K_medium.jpg?v=1720023093)
B310UB-SA126.2K | BFV 3W 10" 50PSI 24VAC 2 POS HTR CONFIG B | Siemens
Brand: Siemens
SKU: B310UB-SA126.2K
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![Siemens B310UC-SA126.2K BFV 3W 10" 50PSI 24VAC 2 POS HTR CONFIG C | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/B310UC-SA126.2K_medium.jpg?v=1720023085)
B310UC-SA126.2K | BFV 3W 10" 50PSI 24VAC 2 POS HTR CONFIG C | Siemens
Brand: Siemens
SKU: B310UC-SA126.2K
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![Siemens B312UD-SA126.5K BFV 3W 12" 50PSI 24VAC 2 POS HTR CONFIG D | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/B312UD-SA126.5K_medium.jpg?v=1720023105)
B312UD-SA126.5K | BFV 3W 12" 50PSI 24VAC 2 POS HTR CONFIG D | Siemens
Brand: Siemens
SKU: B312UD-SA126.5K
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![Siemens B308UA-SA126.2K BFV 3W 8" 50PSI 24VAC 2 POS HTR CONFIG A | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/B308UA-SA126.2K_medium.jpg?v=1720023078)
B308UA-SA126.2K | BFV 3W 8" 50PSI 24VAC 2 POS HTR CONFIG A | Siemens
Brand: Siemens
SKU: B308UA-SA126.2K
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![Siemens B310UD-SA126.2K BFV 3W 10" 50PSI 24VAC 2 POS HTR CONFIG D | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/B310UD-SA126.2K_medium.jpg?v=1720023097)
B310UD-SA126.2K | BFV 3W 10" 50PSI 24VAC 2 POS HTR CONFIG D | Siemens
Brand: Siemens
SKU: B310UD-SA126.2K
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![Siemens B312UA-SA126.5K BFV 3W 12" 50PSI 24VAC 2 POS HTR CONFIG A | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/B312UA-SA126.5K_medium.jpg?v=1720023103)
B312UA-SA126.5K | BFV 3W 12" 50PSI 24VAC 2 POS HTR CONFIG A | Siemens
Brand: Siemens
SKU: B312UA-SA126.5K
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![Siemens B305UD-SA126.600 BFV 3W 5" 50PSI 24VAC 2 POS HTR CONFIG D | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/B305UD-SA126.600_medium.jpg?v=1720023032)
B305UD-SA126.600 | BFV 3W 5" 50PSI 24VAC 2 POS HTR CONFIG D | Siemens
Brand: Siemens
SKU: B305UD-SA126.600
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![Siemens B310UA-SA126.2K BFV 3W 10" 50PSI 24VAC 2 POS HTR CONFIG A | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/B310UA-SA126.2K_medium.jpg?v=1720023112)
B310UA-SA126.2K | BFV 3W 10" 50PSI 24VAC 2 POS HTR CONFIG A | Siemens
Brand: Siemens
SKU: B310UA-SA126.2K
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![Siemens B308UD-SA126.2K BFV 3W 8" 50PSI 24VAC 2 POS HTR CONFIG D | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/B308UD-SA126.2K_medium.jpg?v=1720023081)
B308UD-SA126.2K | BFV 3W 8" 50PSI 24VAC 2 POS HTR CONFIG D | Siemens
Brand: Siemens
SKU: B308UD-SA126.2K
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![Siemens B308UC-SA126.2K BFV 3W 8" 50PSI 24VAC 2 POS HTR CONFIG C | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/B308UC-SA126.2K_medium.jpg?v=1720023077)
B308UC-SA126.2K | BFV 3W 8" 50PSI 24VAC 2 POS HTR CONFIG C | Siemens
Brand: Siemens
SKU: B308UC-SA126.2K
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![Siemens B304UD-SA126.600 BFV 3W 4" 50PSI 24VAC 2 POS HTR CONFIG D | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/B304UD-SA126.600_medium.jpg?v=1720022992)
B304UD-SA126.600 | BFV 3W 4" 50PSI 24VAC 2 POS HTR CONFIG D | Siemens
Brand: Siemens
SKU: B304UD-SA126.600
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![Siemens B305UA-SA126.600 BFV 3W 5" 50PSI 24VAC 2 POS HTR CONFIG A | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/B305UA-SA126.600_medium.jpg?v=1720023057)
B305UA-SA126.600 | BFV 3W 5" 50PSI 24VAC 2 POS HTR CONFIG A | Siemens
Brand: Siemens
SKU: B305UA-SA126.600
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![Siemens B308UB-SA126.2K BFV 3W 8" 50PSI 24VAC 2 POS HTR CONFIG B | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/B308UB-SA126.2K_medium.jpg?v=1720023065)
B308UB-SA126.2K | BFV 3W 8" 50PSI 24VAC 2 POS HTR CONFIG B | Siemens
Brand: Siemens
SKU: B308UB-SA126.2K
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![Siemens B305UB-SA126.600 BFV 3W 5" 50PSI 24VAC 2 POS HTR CONFIG B | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/B305UB-SA126.600_medium.jpg?v=1720022991)
B305UB-SA126.600 | BFV 3W 5" 50PSI 24VAC 2 POS HTR CONFIG B | Siemens
Brand: Siemens
SKU: B305UB-SA126.600
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![Siemens B305UC-SA126.600 BFV 3W 5" 50PSI 24VAC 2 POS HTR CONFIG C | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/B305UC-SA126.600_medium.jpg?v=1720023087)
B305UC-SA126.600 | BFV 3W 5" 50PSI 24VAC 2 POS HTR CONFIG C | Siemens
Brand: Siemens
SKU: B305UC-SA126.600
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![Siemens B320UD-SA266.13K BFV 3W 20" 50PSI 120VAC MOD HTR CONFIG D | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/B320UD-SA266.13K_medium.jpg?v=1720023143)
B320UD-SA266.13K | BFV 3W 20" 50PSI 120VAC MOD HTR CONFIG D | Siemens
Brand: Siemens
SKU: B320UD-SA266.13K
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![Siemens B304UC-SA126.600 BFV 3W 4" 50PSI 24VAC 2 POS HTR CONFIG C | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/B304UC-SA126.600_medium.jpg?v=1720023060)
B304UC-SA126.600 | BFV 3W 4" 50PSI 24VAC 2 POS HTR CONFIG C | Siemens
Brand: Siemens
SKU: B304UC-SA126.600
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