Universal Concealed Window Restictor Kit (2 Pack) - Right

• Universal Compatibility – Supplied with all stud size options
• Durable Build – Strong stainless steel construction for long-lasting reliability
• DIY & Trade Friendly – Simple to fit to new or existing windows with no specialist tools
• Concealed Design – Hidden fixings for a sleek, modern appearance
• Easy Installation & Retrofit Friendly – Spring-loaded, self-engaging design allows quick fitting and is ideal for upgrading existing windows
• Quick-Release Mechanism – Allows easy, tool-free unrestricted opening when needed
• Child Safe – Limit window openings to 89mm preventing unsafe gaps
• Quality Assured – Complies with BS 6375-2:1987 standards for performance and safety

High-quality stainless steel concealed window restrictor fits most PVC-u, timber, and aluminum windows. Features a spring-loaded, auto-locking mechanism limiting sash openings to 89mm for reliable child safety. Supplied with left- or right-handed restrictor arm and three strike plate stud options for universal fitting Fits discreetly between frame and sash on side-hung and top-hung casement windows, delivering effective restriction without affecting aesthetics. Allows ventilation while keeping the room secure. The releasable arm enables full opening when required – ideal for emergencies, cleaning, and deep ventilation Installation Guide Before You Begin – Select left or right arm. Ensure sash and frame are clean. Fit Restrictor Arm – Position in the sash euro groove, adjust for desired opening (≤100mm), mark, drill pilot holes, and secure. Fit Stud – Mark frame location, drill pilot holes, and fix stud level and flush. Test – Close sash to engage restrictor, reopen to check limit, and release by pressing arm inward. Repeat to confirm smooth operation. Final Checks – Ensure screws are secure, movement is smooth, and area is clean. Technical Information Arm Size (H × W × D) – 102 × 16 × 7 mm Stud Sizes (H × W × D) – 40 × 16 × (9.5, 11.5, or 14.5 mm) Material – Stainless Steel Finish – Brushed / Satin Stainless Steel Compatibility – 13mm & 17mm stack heights, top-hung and side-hung uPVC windows Operation – Spring-loaded, self-engaging arm Handing – Left or Right Hand Installation – Concealed fit