Dwyer Flow Category/type
We offer over 8000+ total Dwyer products, including accessories, air velocity transmitters, bin vibrators, CO2/Temp (Duct) sensors, and more. Shop now!
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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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![Dwyer SFI-500CS-1-1/2 Sight window | 1-1/2" male NPT. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/500_600x600_438cc539-1691-49ea-ab97-50aea54a386d_medium.gif?v=1719999983)
SFI-500CS-1-1 / 2 | Sight window | 1-1 / 2" male NPT. | Dwyer
Brand: Dwyer
SKU: SFI-500CS-1-1/2
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![Dwyer SFI-500CS-3/4 Sight window | 3/4" male NPT. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/500_600x600_44d0d01d-e0b9-43b8-9414-187a788645a9_medium.gif?v=1719999802)
SFI-500CS-3 / 4 | Sight window | 3 / 4" male NPT. | Dwyer
Brand: Dwyer
SKU: SFI-500CS-3/4
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![Dwyer SFI-550-3/8 Sight window | 3/8" male NPT. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/550_600x600_40753199-e883-4876-a64b-ba7a8cc5194c_medium.gif?v=1719999900)
SFI-550-3 / 8 | Sight window | 3 / 8" male NPT. | Dwyer
Brand: Dwyer
SKU: SFI-550-3/8
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![Dwyer SFI-500B-1-1/4 Sight window | 1-1/4" male NPT. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/500_600x600_2ca76e2a-8ea7-477c-adea-6ad5bf31c1f4_medium.gif?v=1719999758)
SFI-500B-1-1 / 4 | Sight window | 1-1 / 4" male NPT. | Dwyer
Brand: Dwyer
SKU: SFI-500B-1-1/4
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![Dwyer SFI-500CS-2 Sight window | 2" male NPT. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/500_600x600_2146d363-8b42-4a0c-ad73-d8572009a9f4_medium.gif?v=1719999769)
SFI-500CS-2 | Sight window | 2" male NPT. | Dwyer
Brand: Dwyer
SKU: SFI-500CS-2
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![Dwyer SFI-500SS-1 Sight window | 1" male NPT. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/500_600x600_1249d9b4-b115-4247-9646-84b209d2c2c3_medium.gif?v=1719999793)
SFI-500SS-1 | Sight window | 1" male NPT. | Dwyer
Brand: Dwyer
SKU: SFI-500SS-1
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![Dwyer SFI-550-1-1/2 Sight window | 1-1/2" male NPT. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/550_600x600_8a2e7bb9-27e8-4ce9-a27a-1918cf367d16_medium.gif?v=1719999758)
SFI-550-1-1 / 2 | Sight window | 1-1 / 2" male NPT. | Dwyer
Brand: Dwyer
SKU: SFI-550-1-1/2
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![Dwyer SFI-550-1/4 Sight window | 1/4" male NPT. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/550_600x600_01c5729d-d24a-40c7-9401-b51f651ac19e_medium.gif?v=1719999773)
SFI-550-1 / 4 | Sight window | 1 / 4" male NPT. | Dwyer
Brand: Dwyer
SKU: SFI-550-1/4
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![Dwyer SFI-500SS-1-1/2 Sight window | 1-1/2" male NPT. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/500_600x600_4c275e09-843c-499d-aaf2-09a9149a9083_medium.gif?v=1719999784)
SFI-500SS-1-1 / 2 | Sight window | 1-1 / 2" male NPT. | Dwyer
Brand: Dwyer
SKU: SFI-500SS-1-1/2
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![Dwyer SFI-500SS-3/4 Sight window | 3/4" male NPT. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/500_600x600_19ed6ccf-34a9-4611-867f-4b9e354e5aa3_medium.gif?v=1719999773)
SFI-500SS-3 / 4 | Sight window | 3 / 4" male NPT. | Dwyer
Brand: Dwyer
SKU: SFI-500SS-3/4
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![Dwyer SFI-500B-1 Sight window | 1" male NPT. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/500_600x600_31d75174-0977-42ad-b390-a0b286ca91e5_medium.gif?v=1719999774)
SFI-500B-1 | Sight window | 1" male NPT. | Dwyer
Brand: Dwyer
SKU: SFI-500B-1
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![Dwyer SFI-500B-1-1/2 Sight window | 1-1/2" male NPT. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/500_600x600_f9c5f661-9034-4c8f-932b-9b55b1729257_medium.gif?v=1719999823)
SFI-500B-1-1 / 2 | Sight window | 1-1 / 2" male NPT. | Dwyer
Brand: Dwyer
SKU: SFI-500B-1-1/2
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![Dwyer SFI-500B-2 Sight window | 2" male NPT. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/500_600x600_f2b79ec2-faa5-4359-a2bf-0ef04a6a0735_medium.gif?v=1719999807)
SFI-500B-2 | Sight window | 2" male NPT. | Dwyer
Brand: Dwyer
SKU: SFI-500B-2
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![Dwyer SFI-500CS-1 Sight window | 1" male NPT. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/500_600x600_fe6f0757-d839-4ee9-bad6-58b9e489158a_medium.gif?v=1719999852)
SFI-500CS-1 | Sight window | 1" male NPT. | Dwyer
Brand: Dwyer
SKU: SFI-500CS-1
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![Dwyer SFI-500SS-1-1/4 Sight window | 1-1/4" male NPT. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/500_600x600_93945c82-060c-4cb8-b20e-1736b63a547b_medium.gif?v=1719999784)
SFI-500SS-1-1 / 4 | Sight window | 1-1 / 4" male NPT. | Dwyer
Brand: Dwyer
SKU: SFI-500SS-1-1/4
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