Circular Dry Lining Installation Box with 2 x 20mm Knockouts 35mm

Circular Dry Lining Installation Box with 2 x 20mm Knockouts 35mm Made from flame retardant thermoplastic Large flange around the front matches profile of accessory front plates and prevents slipping into the cavity 25mm base knockout plus 2 side cable entry points. Tough yellow nylon lugs have large bearing faces for superior strength Appropriate for fitting board thicknesses from 6.35-15mm