Aquatop Replacement UV Bulb with Square Base 2 Pin - 9W & 13W Sizes for Aquarium Sterilization | Perfect for Freshwater & Saltwater Tanks, Ponds, and Water Filtration Systems

R7WUV-SQ 7 Watt UV Replacement Bulb: AQUATOP 7 Watt UV replacement bulb compatible with the following AQUATOP products:

• FZ7 Canister Filter With UV Sterilization
• PFUV-25 Hang-On Filter With UV Sterilization
• PFUV-40 Hang-On Filter With UV Sterilization
• UV Sterilizing Pump - SP7UV
• UVE Sterilizing Pump - UVE-7

R13WUV-SQ 13 Watt UV Replacement Bulb: AQUATOP 13 Watt UV replacement bulb compatible with the following AQUATOP products: 

• FZ13 Canister Filter with UV Sterilizer
• SP13-UV Internal Filter with UV Sterilizer
• UVP-13 Submersible Pump UV Sterilizer
• UVCP-13 Submersible Pump UV Sterilizer
• UVFK-13 Submersible Pond UV Sterilizer with Pump + Fountain Kit
• UV Sterilizing Pump UVE13