The acoustic single door set brings together the seals needed to cut noise through one single door. It pairs a perimeter acoustic seal around the frame with an automatic drop seal at the threshold, so the gaps around all four edges are closed when the door is shut. Sized for a standard single door leaf, it is an easy way to reduce sound transfer between rooms without changing the door itself. Product Highlights Complete Single-Door Set - perimeter seal plus a drop seal. Cuts Sound Transfer - closes the gaps around all four edges. Threshold Drop Seal - seals the gap under the door on closing. Sized For One Door - suits a standard single leaf.