Proline Series 3/8-in x 3/8-in Compression Coupling Union Fitting
![](https://mobileimages.lowes.com/productimages/d4e116f1-2b0f-4a8e-b169-7b8ab1884975/63180917.jpg)
3/8-in x 3/8-in Compression Coupling Union Fitting
![](https://images.thdstatic.com/productImages/2feaf7b0-d0ad-40a1-ad7b-6b27ce048ca1/svn/ss-proline-brass-fittings-860492-64_600.jpg)
ProLine 1/2 in. FIP x 3/8 in. FIP Stainless Steel Reducing
![](https://mobileimages.lowes.com/productimages/47334a54-538d-4f53-9fac-8274517c7bef/04195645.jpg?size=pdhism)
BrassCraft 3/8-in x 3/8-in Compression Coupling Fitting in the Brass Fittings department at
![](https://mobileimages.lowes.com/productimages/1b1f2a50-21ae-47cc-972d-4e812c869738/63181267.jpg?size=pdhism)
Proline Series 3/8-in x 3/8-in Compression Adapter Fitting in the
![](https://images.thdstatic.com/productImages/9064ec52-15a8-42d9-b9e7-bff916e48322/svn/brass-everbilt-brass-fittings-800899-4f_600.jpg)
images.thdstatic.com/productImages/9064ec52-15a8-4
![](https://i.ebayimg.com/images/g/GHoAAOSwLNVaqDah/s-l1200.webp)
3 Proline Compression CP-156NL Adapter 3/8 In Female Comp X 3/8 In
![](https://mobileimages.lowes.com/productimages/12ce7866-3a36-4c08-b3f9-f56a8d1896ab/04195646.jpg)
BrassCraft 3/8-in x 3/8-in Compression Coupling Fitting in the Brass Fittings department at
![](https://mobileimages.lowes.com/productimages/cd8d43fc-60f3-4e4d-a762-209aec631349/63180914.jpg?size=pdhism)
Proline Series 3/8-in x 3/8-in Compression Coupling Union Fitting
![](https://media.suthlbr.com/products/images/11716/cp110.jpg)
B & K CP-110NLB ProLine Series 3/8-Inch X 3/8-Inch Compression
![](https://s.yimg.com/lo/api/res/1.2/UyZ3YG9dJdLciHEgRNeabg--/YXBwaWQ9ZWNfaG9yaXpvbnRhbDtoPTQwMDtzcz0xO3c9NDAw/https://mobileimages.lowes.com/productimages/713e2268-4976-4893-bf3d-184cbc02abd6/63180099.jpg)
Proline Series 1/2-in x 3/8-in Barbed Splicer Fitting Stainless
![](https://www.truevalue.com/media/catalog/product/238576.jpg)
Anderson Metals 3/8 In. x 1/2 In. Brass Male Union Compression
![](https://mobileimages.lowes.com/productimages/8acd4709-630a-4ba9-ac83-0bd60dd1820f/63181403.jpg?size=pdhism)
Proline Series 5/8-in x 3/8-in Compression Reducing Union Fitting
![](https://mobileimages.lowes.com/productimages/7a43e999-7326-4e84-8387-7d526b36225a/63180905.jpg?size=pdhism)
Proline Series 2-Pack 3/8-in Compression Cap Fitting at
![](https://mobileimages.lowes.com/productimages/9c2dd6ed-899a-40c7-811c-d16a99b5edb6/63179236.jpg?size=pdhism)
Proline Series 3/8-in x 3/8-in Threaded Female Elbow Fitting in the Brass Fittings department at