ProPEX lead-free (LF) brass to polybutylene (PB) couplings

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°F. Special sprinkler wrenches are required to assemble sprinkler and adapter.

ProPEX LF brass CPVC socket adapters transition Uponor PEX tubing to CPVC (CTS) pipe.Note: ProPEX tool is required. ProPEX rings sold separately. Follow all CPVC manufacturer's instructions for proper CPVC connections.

Use 5/16" repair couplings for 5/16" PEX x 5/16" PEX.Note: One-piece repair coupling comes as an assembly. No other fittings are necessary. For all other sizes of tubing, see ProPEX EP couplings section on pages 98-99. EP couplings are suitable for direct burial.