• Heavy duty base plate designed for use with standard 2" schedule 40 PVC pipe.
• Three mounting holes permit secure mounting to roof decks.
• May be used on top of or below concrete or metal roof decks.
• Center hub is threaded for 1/2" x 13 standard riser bar.
• Recessed ring is provided to seat PVC pipe and to assure a rigid assembly.
• 1/4" mounting holes.
*ETPB = Electro Tin Plated Bronze