Offer is for 1 Piece of the 55 Watt OASE Living Water Bitron 55C ,110C UVC Clarifiers , 55 Watt. 55W Bulb OEM Quality Premium Compatible Replacement 2G11 4 Pin Base, UV Lamp 10000 Hours, 12 Month Guaranty!y!!!!!! This Premium Quality Replacement lamp is Manufactured by Starlighting and is Guaranteed to Meet or Exceed the Original Manufacturers Specifications. The use of the Original Manufacturers Name is for Identification purposes only. The name OASE is trademarked and wholly owned by OASE We do not sell or distribute OASE Products