Assembled Product Length: 9" Coverage: N/A Assembled Product Height: 2.6" Assembled Product Width: 3.3" Indoor air quality has become a very hot topic over the last few years as we struggle to ensure that the ones we love are breathing, living and feeling their best. This replacement bulb for air purification units is for Swordfish Whole Home unit # UVA18W(B) and Room/Condo Air Purifier #UVA1800RM. 0.5 lb DIMENSIONS: 9" x 3.3" x 2.6"