40700 Black Rubber Mounting Grommets for 4" Lamps $4.10 Quantity discounts available QuantityPrice Quantity -+ Add to Cart Details Flush mounts 4" diameter lamps in a 4 1/2" holeDesigned to provide additional shock absorbency to extend lamp lifeTPR grommet designed for extreme env... Details Back DetailsFlush mounts 4" diameter lamps in a 4 1/2" holeDesigned to provide additional shock absorbency to extend lamp lifeTPR grommet designed for extreme environmental applications & eliminates outgassing