Pre-cut stencils are available for an economical way to mark piping. A variety of letter heights are available to comply with ASME A13.1 recommendations.
CSI Specifications
23 05 53 Identification for HVAC Piping and Equipment
23 05 00 Common Work Results for HVAC
23 00 00 Heating, Ventilating, and Air Conditioning (HVAC)