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Discover a range of products at Blackhawk Supply. Shop now and explore our wide catalog of controls, HVAC, electrical, plumbing, and more.
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![Midland Metal Mfg. 20022C 3/8 X 1/4 P-I UNION, Brass Fittings, Composite Body Push In Fittings, Union | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/20022C_ae29b221-94c1-4149-be8e-2fd84fda97e9_medium.jpg?v=1720013956)
20022C | 3 / 8 X 1 / 4 P-I UNION, Brass Fittings, Composite Body Push In Fittings, Union | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 20022C
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![Midland Metal Mfg. 20021C 1/2 UNION PUSH-IN, Brass Fittings, Composite Body Push In Fittings, Union | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/20021C_8a50d3c5-3afd-400d-9629-ead3f8c352d8_medium.jpg?v=1720013954)
20021C | 1 / 2 UNION PUSH-IN, Brass Fittings, Composite Body Push In Fittings, Union | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 20021C
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![Midland Metal Mfg. 20020C 3/8 PUSH-IN UNION, Brass Fittings, Composite Body Push In Fittings, Union | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/20020C_bda8e066-14aa-47bc-8a2c-10efdff49a41_medium.jpg?v=1720013964)
20020C | 3 / 8 PUSH-IN UNION, Brass Fittings, Composite Body Push In Fittings, Union | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 20020C
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![Midland Metal Mfg. 20018C 5/32 PUSH-IN UNION CONNECTOR COMPOSITE, Brass Fittings, Composite Body Push In Fittings, Union | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/20018C_7b0c1872-94b6-4455-a586-13e0ef9be5fe_medium.jpg?v=1720013978)
20018C | 5 / 32 PUSH-IN UNION CONNECTOR COMPOSITE, Brass Fittings, Composite Body Push In Fittings, Union | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 20018C
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![Midland Metal Mfg. 20017C 1/8 UNION PUSH-IN, Brass Fittings, Composite Body Push In Fittings, Union | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/20017C_6625cc57-d765-442c-aadd-85b0711db8e6_medium.jpg?v=1720013961)
20017C | 1 / 8 UNION PUSH-IN, Brass Fittings, Composite Body Push In Fittings, Union | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 20017C
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![Midland Metal Mfg. 20016C UNION CONN 1/4 T X 5/32 T COMP BODY | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/20016C_medium.jpg?v=1718747489)
20016C | UNION CONN 1 / 4 T X 5 / 32 T COMP BODY | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 20016C
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![Midland Metal Mfg. 20015C 5/16 PUSH-IN UNION COMPOSITE CONNECTOR, Brass Fittings, Composite Body Push In Fittings, Union | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/20015C_e749abd6-33ac-4e78-a5cc-7674167f9e5f_medium.jpg?v=1720013980)
20015C | 5 / 16 PUSH-IN UNION COMPOSITE CONNECTOR, Brass Fittings, Composite Body Push In Fittings, Union | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 20015C
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![Midland Metal Mfg. 20001C 3/16 PUSH-IN UNION COMPOSITE CONNECTOR, Brass Fittings, Composite Body Push In Fittings, Union | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/20001C_e3d5b973-2df8-4321-a4fa-a1d51c858c0b_medium.jpg?v=1720013986)
20001C | 3 / 16 PUSH-IN UNION COMPOSITE CONNECTOR, Brass Fittings, Composite Body Push In Fittings, Union | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 20001C
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![Midland Metal Mfg. 20245 1/2 POLY-FLO UNION, Brass Fittings, Flareless, Union | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/20245_bc503196-1732-4af0-b2c6-9bb8236ab667_medium.jpg?v=1720014041)
20245 | 1 / 2 POLY-FLO UNION, Brass Fittings, Flareless, Union | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 20245
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![Midland Metal Mfg. 20244 3/8 POLY-FLO UNION, Brass Fittings, Flareless, Union | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/20244_35ecf737-fb7c-40a5-b462-13d2b6d2dd61_medium.jpg?v=1720014042)
20244 | 3 / 8 POLY-FLO UNION, Brass Fittings, Flareless, Union | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 20244
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![Midland Metal Mfg. 20241 3/16 POLY-FLO UNION, Brass Fittings, Flareless, Union | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/20241_8587b760-7fd2-4ce2-9cb2-50d179c1b3ea_medium.jpg?v=1720014072)
20241 | 3 / 16 POLY-FLO UNION, Brass Fittings, Flareless, Union | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 20241
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![Midland Metal Mfg. 20243 5/16 POLY-FLO UNION, Brass Fittings, Flareless, Union | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/20243_d9fd9629-ba0b-42ed-89cc-e5a31f4100ca_medium.jpg?v=1720014061)
20243 | 5 / 16 POLY-FLO UNION, Brass Fittings, Flareless, Union | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 20243
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![Midland Metal Mfg. 20240 1/8 POLY-FLO UNION, Brass Fittings, Flareless, Union | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/20240_bfee28e8-a72a-4e4f-a629-06f06485925c_medium.jpg?v=1720014042)
20240 | 1 / 8 POLY-FLO UNION, Brass Fittings, Flareless, Union | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 20240
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![Midland Metal Mfg. 20200 3/8 X 1/4 REDUCNG POLY-FLO UNION, Brass Fittings, Flareless, Union | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/20200_51a7434d-6f1b-4c24-9297-52815ee7deee_medium.jpg?v=1720014028)
20200 | 3 / 8 X 1 / 4 REDUCNG POLY-FLO UNION, Brass Fittings, Flareless, Union | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 20200
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![Midland Metal Mfg. 31066 3/8 CHROME COMP UNION | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/18062_5d4d9612-3ee3-4580-83a2-c00ac2bfd8a9_medium.jpg?v=1718748346)
31066 | 3 / 8 CHROME COMP UNION | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 31066
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![Midland Metal Mfg. 19066 3/8 COMPRESSION UNION BODY | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/18062_a5b0f9c2-754f-4b2c-bcc9-e5226757fc7b_medium.jpg?v=1718747532)
19066 | 3 / 8 COMPRESSION UNION BODY | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 19066
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![Midland Metal Mfg. 19065 5/16 COMPRESSION UNION BODY | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/18062_3c2334d7-bf51-4ec8-8378-2eeef6131062_medium.jpg?v=1718747542)
19065 | 5 / 16 COMPRESSION UNION BODY | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 19065
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![Midland Metal Mfg. 18072 1 COMPRESSION UNION | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/18072_medium.jpg?v=1718747312)
18072 | 1 COMPRESSION UNION | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 18072
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![Midland Metal Mfg. 18069L 5/8 COMPRESSION UNION-LIGHT PTRN, Brass Fittings, Compression, Union | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/18069L_f37f712d-4b65-4621-9544-b279734d9561_medium.jpg?v=1720013828)
18069L | 5 / 8 COMPRESSION UNION-LIGHT PTRN, Brass Fittings, Compression, Union | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 18069L
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![Midland Metal Mfg. 18068L 1/2 COMPRESSION UNION-LIGHT PTRN, Brass Fittings, Compression, Union | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/18068L_c1983038-49d7-449f-9f82-6678de628144_medium.jpg?v=1720013824)
18068L | 1 / 2 COMPRESSION UNION-LIGHT PTRN, Brass Fittings, Compression, Union | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 18068L
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![Midland Metal Mfg. 18064L 1/4 COMPRESSION UNION-LIGHT PTRN, Brass Fittings, Compression, Union | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/18064L_09da5ac0-3792-4da5-8f16-ab387e12afc9_medium.jpg?v=1720013861)
18064L | 1 / 4 COMPRESSION UNION-LIGHT PTRN, Brass Fittings, Compression, Union | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 18064L
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![Midland Metal Mfg. 21009 3/8 SNGL BARB UNION, Brass Fittings, Single and Double Barb, Union | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/21009_2121aca5-a931-4f6a-bdd4-4189db77c344_medium.jpg?v=1720014132)
21009 | 3 / 8 SNGL BARB UNION, Brass Fittings, Single and Double Barb, Union | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 21009
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![Midland Metal Mfg. 21007 3/8 X 1/4 SNGL BARB UNION, Brass Fittings, Single and Double Barb, Union | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/21007_719c41cd-be71-4880-8177-fd313283ffbf_medium.jpg?v=1720014132)
21007 | 3 / 8 X 1 / 4 SNGL BARB UNION, Brass Fittings, Single and Double Barb, Union | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 21007
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![Midland Metal Mfg. 28069 3/8 FIP BS UNION, Brass Fittings, Pipe, Union | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/28069_medium.jpg?v=1718748015)
28069 | 3 / 8 FIP BS UNION, Brass Fittings, Pipe, Union | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 28069
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Brand: Functional Devices
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Brand: Belimo
SKU: SGVL+SVKB24-SR![Siemens 547-323A RCM FM BAC +/-.25"wc(62.5Pa)0.5%FS | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/547-322B-2__18675.1474097902.1280.1280_large.jpg?v=1720022574)
547-323A | RCM FM BAC +/-.25"wc(62.5Pa)0.5%FS | Siemens
Brand: Siemens
SKU: 547-323A