Uponor Flat Concealed Sprinkler, Nominal K-Factor: 4.9, 162 deg F, Import

Concealed sprinklers thread onto Uponor's fire sprinkler adapter fittings. All sprinklers come complete with a plastic protective cap and cup. Sprinklers are NSF- and UL-approved for combined plumbing and fire sprinkler systems. Sprinklers designated LF are also NSF Annex G compliant. Note: Concealed cover plates for LF74970FC sold separately. Concealed cover plates are included with LF74971FW. Do not store sprinkler assemblies where the ambient temperature will exceed 100 deg F. Special sprinkler wrenches are required to assemble sprinkler and adapter.