Here is the link to connect with room rates at Embassy Suites.  Please inform the site that you are with PHS 50th Reunion Class of '75 block of rooms.  Approximate rate is 200 dollars per night.

https://www.hilton.com/en/hotels/ontapes-embassy-suites-ontario-airport/  

HI TO ALL THAT PLAN TO STAY AT EMBASSY SUITES:

Embassy informs us that May 16th is the deadline to reserve from the avaiilable block of rooms set aside for PHS 75 50th Reunion group.  After the 16th, those rooms will be opened up to the general public.