![City Theatrical Source 4 "B" (Iris Slot) Glass Pattern Holder City Theatrical Source 4 "B" (Iris Slot) Glass Pattern Holder](https://cdn11.bigcommerce.com/s-nnyoihm3uz/images/stencil/250x250/products/9640/11738/2172_s4_b_lg__68408__61526.1522439651.jpg?c=2)
Supports for positioning patterns or templates in just the optical center of ellipsoidal spotlights. A steel channel pattern holder is available for most spotlights. For Source Four "B"-size glass patterns.
3 3/4" wide. 2 3/4" diameter image area. Holds glass pattern with 82mm outer diameter.
Please Note: Rosco Glass Patterns will not fit this pattern holder and instead require the Rosco Universal Iris Slot Holder, City Theatrical Source 4 86mm OD (Gobo Slot) Glass Pattern Holder, or City Theatrical Source 4 86mm OD (Iris Slot) Glass Pattern Holder.