RISERS

    Risers are measured shoulder to shoulder, excluding threaded ends. The top boss is typically threaded 1/8" IPS outside with a central hole tapped 8-32. The bottom boss is usually threaded 1"-18 to fit most Tiffany clusters, but some early bases carry clusters that are threaded either 7/8"-27 or 1"-27. These early sizes are not consistent, so the cluster should be sent to us to insure a proper fit. The R6 riser fits larger Tiffany clusters.

 

CLUSTER PLUGS

RETURN

R11

Riser

3 3/4" high

CP3

Cluster Plug

1 1/2" OD

    Like the risers, most cluster plugs are threaded 1"-18, but many early examples are threaded either 7/8"-27 or 1"-27. Again, the cluster should be provided for a proper fit.