Thermwell Y3750 Storm Door Bottom Sweep 37 in Gray

Product Description

The THERMWELL Y3750 is a vinyl storm door bottom sweep designed to seal the gap at the base of aluminum storm doors. The Y-section profile fits into the existing door frame channel, replacing worn or damaged aluminum bottom sweeps without requiring a full door replacement. At 37 inches in length, this sweep suits standard storm door widths common in residential entry door applications. The gray finish blends with aluminum storm door frames. Installation requires basic hand tools and no special trade licensing, making it suitable for service technicians and experienced property maintenance staff alike.

This bottom sweep is intended for aluminum storm door applications where the original bottom seal has cracked, shrunk, or detached. The Y-section design slides into the retainer channel already present on most aluminum storm doors, making it a direct drop-in vinyl replacement. It is appropriate for residential exterior doors in both single-family and multi-unit settings. Installers working on seasonal door prep or weatherization service calls will find this a straightforward stock item.

Key Features

• 37-inch length fits standard residential storm door widths
• Y-section profile slides into existing aluminum door retainer channels
• Vinyl construction replaces deteriorated original aluminum or vinyl sweeps
• Gray color coordinates with aluminum storm door finishes
• Package quantity of 12 units supports service truck stocking

Compatibility

Designed as a vinyl replacement bottom sweep for aluminum storm doors with a Y-section retainer channel, 37 inches wide.

Installation Notes

Power is not a factor for this product, but the storm door should be fully closed and stable before beginning replacement. Remove the old sweep by sliding it out of the bottom retainer channel, then slide the Y3750 into place until seated. Trim to fit with a utility knife or tin snips if the door opening is slightly narrower. No fasteners or adhesives are typically required when the Y-section seats properly in the channel.