Bio - 3.0 Maintenance Kit PL-S 9W and is considered one of

and is considered one of the high quality and highly effective UV emitters in the market

The reflector liner is manufactured to reflect UV curable energy

Replacement UV Bulbs (included): 1 Philips TUV PL-L 36W

Low pressure sodium lamps

Bio - 3.0 Maintenance Kit PL-S 9W and is considered one ofFull Maintenance Kit for Bio Logic 3GPM systems. There's no need to rack up cost and purchase parts separately for the yearly maintenance on your Bio Logic system with this convenient kit. Everything needed comes inside. Includes: One Germicidal Ultraviolet Replacement Lamp One Quartz Sleeve 2 O Rings 2 Teflon Washers *Recommended change out once a year or every 10,000 hours.