The Fig. 28M is intended to be installed on a vertical (side) surface with the fasteners in a horizontal
position, or it can be installed on a horizontal (top or bottom) surface with the fasteners in a vertical,
upward or downward facing position.
• The Fig. 28M is intended for the support of horizontal piping. It can be used as a guide only on vertical
piping.

Maximum spacing required per NFPA 13 for CPVC plastic pipe
¾”.....................................................5’-6”
1”......................................................6’-0”
1 ¼”..................................................6’-6”
1 ½”..................................................7’-0”
2”......................................................8’-0”