Pemko 18100_NB Door Bottom Sweep with Nylon Brush Insert The 18100_NB Nylon Brush seal with 180 degree retainer and 1" brush is designed to seal the gap under and around doors. It features densely compressed nylon filaments that are highly flexible and conform well to surface irregularities. The casing measures 7/8" H and the brush portion has a height of 1". Punched with slotted holes for adjustment For hollow metal and wood door applications Use on overhead, section, sliding, and automatic doors Brush seals reduce the infiltration of smoke, fumes, weather and light Smooth gliding brushes automatically adjust to slightly uneven floors UV stable, dependable, long-lasting and cost effective Naturally repels rodents and spiders Width: 1/4” (6.4 mm) Profile Height: 7/8” (22.2 mm) Height Including Brush: 1-7/8” (47.9 mm) Finishes 18100CNB: C - Clear Anodized Aluminum with Nylon Brush insert 18100BSPNB: BSP - Black Suede Powder Coat with Nylon Brush insert 18100DNB: D - Dark Bronze Anodized Aluminum with Nylon Brush insert 18100GNB: G - Gold Powder Coat with Nylon Brush insert 18100WSPNB: WSP - White Suede Powder Coat with Nylon Brush insert Ratings BHMA Certified Smoke Tested - UL1784 Fire Rated - UL10C - Positive Pressure Underwriters Laboratory 4L10 GREENGUARD Gold Certified