: Sites like QRFS (Quick Response Fire Supply) and PexUniverse stock a wide variety of heads from leading brands like Tyco , Viking , and Victaulic .
: For many homeowners, the most reliable route is purchasing through a licensed fire protection contractor who can also ensure the system remains code-compliant.
: Major distributors such as Ferguson and SupplyHouse.com offer extensive catalogs for both residential and commercial projects.