This fits your .

• Type: Closet Supply Line
• For Use With: Toilet
• Length (Inch): 9
• Inlet Type: Compression
• Inlet Size (Inch): 3/8
• Outlet Type: Ballcock
• Outlet Size (Inch): 7/8
• Material: Stainless Steel
• Maximum Working Pressure (psi): 2500

3/8 Compression Inlet x 7/8 Ballcock Outlet Stainless Steel Water Connector pack of 50 - B07GXRH16Q