Hydro-logic Algae Block Sleeve
Hydro-logic Algae Block Sleeve at HorticultureSource.com -
Hydro-logic Algae Block Sleeve Neoprene sleeve that goes over all standard clear housings. Blocks light so no algae can grow. Easy to remove to check status of filters. Reversible blue and black. Fits Stealth RO, Small Boy, and Triton.