Dwyer Valves / connectors Type
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![Dwyer A-321 Brass safety relief valve | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/valves-connectors_pic_1_72e2abae-0d1e-481e-9aa1-740a8d56eaa5_medium.jpg?v=1719998284)
A-321 | Brass safety relief valve | Dwyer
Brand: Dwyer
SKU: A-321
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![Dwyer A-312 Shut off valve | brass | 1/8" NPT to 1/4" metal tubing. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/valves-connectors_pic_1_e53f5c06-275f-42be-b466-ec6ba3cfc995_medium.jpg?v=1719998274)
A-312 | Shut off valve | brass | 1 / 8" NPT to 1 / 4" metal tubing. | Dwyer
Brand: Dwyer
SKU: A-312
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![Dwyer A-315 Gage connector | shutoff type | for 3/16" rubber tubing. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/valves-connectors_pic_1_93217fcb-e9bb-45da-a89b-04e05e62e084_medium.jpg?v=1719998279)
A-315 | Gage connector | shutoff type | for 3 / 16" rubber tubing. | Dwyer
Brand: Dwyer
SKU: A-315
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![Dwyer A-316 Gage connector | bushing | 1/8" pipe thread opening. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/valves-connectors_pic_1_70600530-f858-4642-ba62-1a6bd742b5e9_medium.jpg?v=1719998280)
A-316 | Gage connector | bushing | 1 / 8" pipe thread opening. | Dwyer
Brand: Dwyer
SKU: A-316
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![Dwyer A-318 Gage connector | 1/4" pipe thread opening. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/valves-connectors_pic_1_fbfbd0f8-8bb0-4f80-a997-e8dd5f74a6e8_medium.jpg?v=1719998290)
A-318 | Gage connector | 1 / 4" pipe thread opening. | Dwyer
Brand: Dwyer
SKU: A-318
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![Dwyer A-473 8 mm OD tubing to 1/8" NPT shut-off valve | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/valves-connectors_pic_1_6e519998-54ef-4d59-86e0-5192345820bb_medium.jpg?v=1719998310)
A-473 | 8 mm OD tubing to 1 / 8" NPT shut-off valve | Dwyer
Brand: Dwyer
SKU: A-473
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![Dwyer A-311 Shut off valve | brass | 1/8" NPT to 1/8" NPT. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/valves-connectors_pic_1_a22272ad-ac34-408c-b0f2-b11ade950b9b_medium.jpg?v=1719998261)
A-311 | Shut off valve | brass | 1 / 8" NPT to 1 / 8" NPT. | Dwyer
Brand: Dwyer
SKU: A-311
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