Danner Clearguard UV Clarifier Replacement Sleeves (Gen 1 & 2) Model:9 Watt Sleeve - Gen 2 Aquascape Cold Water Beneficial Bacteria

Aquascape Cold Water Beneficial Bacteria also reduces ammonia

Underlayment 15' x 33'

It's truly a sight to behold

Easily stored and installed

Danner Clearguard UV Clarifier Replacement Sleeves (Gen 1 & 2) Model:9 Watt Sleeve - Gen 2 Aquascape Cold Water Beneficial BacteriaReplacement sleeves for 9W and 18W (Generation 1 2018 and before; Generation 2 2019 and after) Clearguard ultraviolet clarifiers. Ultraviolet light is used to clarify green water by killing bacteria and algae without harming your fish or plants. Make sure that your Clearguard filter continues to function with replacement sleeves. 100% designed and made in the USA!