Acoustic Plus 51 Rebated Drop Down Seal

Product Code: 1224

This high-performance seal provides an effective barrier against the outside climate, noise, fire, smoke, light and insects. A drop down seal, it’s activated once the door is closed. The means the door threshold remains clear without the need for a high fixed threshold. It’s the idea seal to meet document part E and part M of UK building regulations where disability, access and energy conservation is concerned. Choose from a selection of seals to suit glass or timber doors.

Available in various sizes, this easy-to-fit seal is a versatile solution that comes with pre-fitted screws for a quick and cost-effective installation.

New customer? Register your details and we’ll begin the approval process for your customer account. Once approved, you’ll gain access to the CheckFire store and all the latest news and product offers.


• Prefitted screws for quick and cost effective installation
• Seal removable to assist installation or replacement
• Seal drops on hinge side before lock side
• 14mm maximum drop
• Galvanised steel flat springs and reinforced actuators
• Sound insulating seal – high quality ‘V’ zero class PVC rubber seal – self extinguishing
• Fire tested to BS476: Part 20/22: 1987 to 60 minutes
• Smoke tested to BS EN 1634-3: 2004

Orders are sent out on a standard next working day delivery to all mainland UK when ordered by 4:30pm (subject to stock availability). If next working day doesn’t suit you, then please select a forward delivery date that is more convenient for you.

Please see our matrix for delivery charges



• Prefitted screws for quick and cost effective installation
• Seal removable to assist installation or replacement
• Seal drops on hinge side before lock side
• 14mm maximum drop
• Galvanised steel flat springs and reinforced actuators
• Sound insulating seal – high quality ‘V’ zero class PVC rubber seal – self extinguishing
• Fire tested to BS476: Part 20/22: 1987 to 60 minutes
• Smoke tested to BS EN 1634-3: 2004

Orders are sent out on a standard next working day delivery to all mainland UK when ordered by 4:30pm (subject to stock availability). If next working day doesn’t suit you, then please select a forward delivery date that is more convenient for you.

Please see our matrix for delivery charges