SBC1 – 7-1/8″ Speaker Back Cover seachoice Mounting spacers are permanently attached

Mounting spacers are permanently attached

and (24) #8 screws

Two positions: off - momentary on

it can hold up against the shock

Exclusive "Quick-Lock" ball clamp assembly that can be adjusted without the need of wrenches

SBC1 – 7-1/8″ Speaker Back Cover seachoice Mounting spacers are permanently attachedProvide protection to the back side of the speakers, behind a bulkhead or wall. Covers wire connections and protects the speakers cones. Discontinued Product Slotted mounting holes match stud locations on most speakers Covers wire connectors Compact size fits Poly Planar MA4054, MA4055, MA4056, MA8505, MA8506, MA6500 and MA5106 speakers Sold individually