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White Vinyl U-Shape Screw-on Under Door Seal 36" for 1-3/4" Doors

White Vinyl U-Shape Screw-on Under Door Seal 36" for 1-3/4" Doors

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Description

White Vinyl U-Shape Screw-on Under Door Seal 36" for 1-3/4" Doors

The M-D Building Products 6528 is a 36-inch white vinyl U-shape screw-on under door seal designed for standard 1-3/4" thick doors. This durable seal creates a tight barrier at the door bottom to block drafts, moisture, dust, and insects while helping maintain indoor temperatures.

Key Features

  • U-Shape Design - Fits snugly over the bottom of most standard interior and exterior doors up to 36 inches wide.
  • Dual Vinyl Construction - Combines rigid vinyl for structure with flexible vinyl fins for a tight seal against the threshold.
  • Weather Protection - Blocks drafts, moisture, dust, and insects from entering the home.
  • Energy Savings - Helps reduce heat loss in winter and air conditioning escape in summer.
  • Easy Installation - Features slotted screw holes for simple alignment and adjustment on wood, metal, or fiberglass doors.
  • Drip Fin Design - Diverts water away from the door as shown in product diagrams.
  • Four Vinyl Fins - Seal gaps up to 3/8" between door and threshold.
  • Modern Style - Clean white finish blends with most door colors and trim.

Technical Specifications

Specification Details
Brand M-D Building Products
Model 6528
Type U-Shape Screw-on Under Door Seal
Material Vinyl (rigid and flexible)
Color White
Item Width 36 in
Item Height 1-1/8 in
Item Length 2 in
Number in Pack 1
Style Modern
Suitable For Door

Compatibility & Fitment

Designed for most standard residential hinged doors (wood, metal, or fiberglass) up to 36 inches wide and 1-3/8" to 1-3/4" thick. Works with standard flat or low-profile thresholds. Not suitable for sliding doors, garage doors, or doors with very thick bottom rails. Measure door bottom clearance for at least 1/4"–1/2" space before installation.

What Is Included

  • One 36-inch white vinyl U-shape under door seal (M-D Building Products model 6528)
  • Slotted screw holes for mounting (screws not included)

Brand: M-D Building Products

Type: U-Shape Screw-on Under Door Seal

Number in Pack: 1

Color: White

Item Height: 1-1/8 in

Model: 6528

Style: Modern

Material: Vinyl

Item Length: 2 in

Item Width: 36 in

Suitable For: Door