I know that thread is older but recently I found out that the new Danco HC660 hydroclean will fit the older Kohler Rialto
toilets. The fill valve will go down to 9.5 inches tall and just fits the top and side of the toilet. I am not sure it fits the other low profile models
San Raphael, Rialto and Revival
but is worth a look . I retrofitted mine and flush time is down to 29 seconds and the hydroclean feature scours the tank bottom to keep the flapper clean .
You can also adjust the bowl water height to keep enough water in the bowl for a good strong flush .
Its a good $12 solution with a 5 year warranty. I'd bet that Danco has no Idea that it fits these toilets.
I found out by accident when replacing a fill valve on another toilet and the package said it fits 9 inch height.
I bought another after some preliminary measurements and it fits perfectly .
Thank you Danco .
toilets. The fill valve will go down to 9.5 inches tall and just fits the top and side of the toilet. I am not sure it fits the other low profile models
San Raphael, Rialto and Revival
but is worth a look . I retrofitted mine and flush time is down to 29 seconds and the hydroclean feature scours the tank bottom to keep the flapper clean .
You can also adjust the bowl water height to keep enough water in the bowl for a good strong flush .
Its a good $12 solution with a 5 year warranty. I'd bet that Danco has no Idea that it fits these toilets.
I found out by accident when replacing a fill valve on another toilet and the package said it fits 9 inch height.
I bought another after some preliminary measurements and it fits perfectly .
Thank you Danco .