The Hörmann (Hormann) Garage Door Bottom Seal, Gray Astragal, Vinyl, in 3" or 4" widths is a direct-replacement weatherstrip for select Hörmann sectional garage doors. Designed to compress against the floor as the door closes, it helps block drafts, dust, insects, and wind-driven water while reducing light gaps and compensating for minor floor irregularities. The gray astragal slides into the existing Hörmann bottom retainer channel, making it a practical replacement part for residential or light commercial applications where maintaining a tight bottom seal improves comfort and energy efficiency.
This gray vinyl astragal is offered in 3" and 4" width options to match the gap coverage your door requires; the wider option is typically chosen for uneven floors or larger thresholds. Installation is straightforward: disconnect power to the opener, place the door on stable supports, remove the old strip, and lubricate the retainer channel lightly to ease the new seal into place; trim to length with a utility knife and secure ends to prevent migration. Compatibility is retainer-dependent and not universal—verify that your Hörmann bottom retainer is designed for a flat gray astragal profile before ordering. Use with appropriate safety precautions around springs and moving hardware, and check door balance and travel limits after replacement to ensure proper closing pressure and consistent floor contact.