Lead Free Model*: Viking’s Freedom® Concealed HSW Lead Free Sprinkler VK4800 is a residential horizontal sidewall sprinkler that is fully concealed behind a flat cover plate.  The patent-pending sprinkler is cULus listed for up to 16 x 18 ft (4.9 x 5.5 m) coverage areas with water flow and pressure requirements that are competitive with a standard recessed sidewall sprinkler.  The sprinkler is shipped standard with a special pipe guide to facilitate easy installation in a standard 2 x 4" stud space. * Lead content complies with the definition of ‘Lead Free’ established in the Reduction of Lead in Drinking Water Act (S.3874) endorsed by AWWA’s Water Utility Council, and California Assembly Bill #1953.