Aquasure Fortitude Series Replacement O-Ring

Is this the correct o-ring for AS-FS-25SCZ filter housing?

Yes, this is the correct or-ing for that housing.

Is this the replacement forAF-SCZ-25HFS filter housing?

Hi and thank you for reaching out to us. 

Yes, this Oring is for the Fortitude V2 filter housing. 

What is the diameter of this o-ring?

4.5"

TERRIBLE DESCRITION. WILL THIS FIT MY FP1500? WHAT SIZE IS IT?

For detailed information please contact support@aquasureusa.com

looking for oring that fits filter housing af-acz-25hfs ?

Yes, the O-ring is AP-HF45-ORING

what are the measurements to the O -rings for whole house water filter systems, SKU: AP-HF45-ORING? Do you sell them on Amazon?

Hello, 

The Oring AP-Hf25-ORING is 4.5inches and no we do not sell on Amazon.