Hello Bruce, Thank you for your question regarding the Delta Soap / Lotion Dispenser - Vented Funnel and I am happy to assist you today. The dimensions of this soap dispenser refill funnel are as follows: 3-1/4" long 2-1/2" top outside diameter 27/32" bottom outside diameter including ribs 3/4" bottom outside diameter without ribs 21/32" bottom inside diameter If you are in need of a replacement pump and bottle for your soap dispenser, please do not hesitate to give us a call on our warranty line at 800-345-3358 if we can assist you with determining which soap dispenser model you have and we will be happy to help you with ordering the replacement bottle and pump. Thank you, Brandy
I don't know but it fits perfect in the dispenser
The diameter is 4 inches.