ZURN Coupling: Fits Zurn Brand, For Zurn, 3 in x 6 in Size, Plastic - 52JH93|P1201-TC-6-CPLG - Grainger
American Standard 738756-0070AP Champion 2 Piece Toilet Tank to Bowl Coupling Kit
Toilet Cistern To Toilet Pan Fixing Fitting Sealing Kit Close Coupling Bolts WC | eBay
American Standard - Automatic Flush Valves; Type: Touchless Toilet Flush Valve ; Style: Modern ; Gallons Per Flush: 1.1 ; Pipe Size: 1-1/2 (Inch); Spud Coupling Size: 1-1/2 (Inch); Cover Material: Chrome - 20171294 - MSC Industrial Supply
Toilet Close Coupling Kit Fixings Close Coupling Tank Pan WC Bath Toilet Cistern | eBay
American Standard 4142.016.020 Yorkville Flushometer Toilet Tank Complete with Coupling Components, White (Tank Only) - Toilet Water Tanks - Amazon.com