Allied #4 Bone [11-2020B] Mounting Component The Allied #4 Bone is a precision mounting insert designed for spa and hot tub installations. Built for professionals and DIYers alike, it provides a reliable anchor for spa components with a compact bone-style profile and a precise 1-3/16" mounting hole. Mounting Hole: 1-3/16" for a secure, accurate fit in compatible spa assemblies. Manufacturer Part Number: 950402-000 Brand: Allied Innovations Category: Spa hardware component used in Home & Garden > Pool & Spa Design: Bone-style mounting insert engineered for reliable alignment in spa panels and control assemblies Benefits: By delivering a stable anchor for air button assemblies and other spa controls, the Allied #4 Bone helps reduce movement, improve seal integrity, and simplify maintenance. The precise hole size supports easy installation and consistent performance in humid, wet spa environments, making it a dependable replacement part or upgrade for Allied spa systems. Mounting Hole: 1-3/16" Bone Manufacturer #:950402-000