Dwyer Sight flow indicators Type
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![Dwyer SFI-550-1-1/4 Sight window | 1-1/4" male NPT. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/550_600x600_95403b8a-2aa0-4147-a160-d6a0b547b108_medium.gif?v=1719999743)
SFI-550-1-1 / 4 | Sight window | 1-1 / 4" male NPT. | Dwyer
Brand: Dwyer
SKU: SFI-550-1-1/4
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![Dwyer SFI-550-2 Sight window | 2" male NPT. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/550_600x600_40e40963-e1d9-43ff-92eb-ed33570dda60_medium.gif?v=1719999763)
SFI-550-2 | Sight window | 2" male NPT. | Dwyer
Brand: Dwyer
SKU: SFI-550-2
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![Dwyer SFI-550-1 Sight window | 1" male NPT. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/550_600x600_b5bb6bd6-0484-46e1-a8ea-cb5d4dcded0c_medium.gif?v=1719999758)
SFI-550-1 | Sight window | 1" male NPT. | Dwyer
Brand: Dwyer
SKU: SFI-550-1
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![Dwyer SFI-550-3/4 Sight window | 3/4" male NPT. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/550_600x600_7f4829ea-72b4-4192-b38d-85833c706ca9_medium.gif?v=1719999822)
SFI-550-3 / 4 | Sight window | 3 / 4" male NPT. | Dwyer
Brand: Dwyer
SKU: SFI-550-3/4
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![Dwyer SFI-500B-3/4 Sight window | 3/4" male NPT. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/500_600x600_01858e35-6acf-48cc-84fa-157e4cddb57c_medium.gif?v=1719999793)
SFI-500B-3 / 4 | Sight window | 3 / 4" male NPT. | Dwyer
Brand: Dwyer
SKU: SFI-500B-3/4
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![Dwyer SFI-550-1/2 Sight window | 1/2" male NPT. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/550_600x600_fd54cd37-ae2f-4cab-bb83-50b4e1f3894e_medium.gif?v=1719999793)
SFI-550-1 / 2 | Sight window | 1 / 2" male NPT. | Dwyer
Brand: Dwyer
SKU: SFI-550-1/2
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![Dwyer SFI-500CS-1-1/4 Sight window | 1-1/4" male NPT. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/500_600x600_31c265d8-3dec-4599-99a4-3c081f8fc196_medium.gif?v=1719999812)
SFI-500CS-1-1 / 4 | Sight window | 1-1 / 4" male NPT. | Dwyer
Brand: Dwyer
SKU: SFI-500CS-1-1/4
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