This quartz sleeve (original part numbers 8.55.015 / 24QDV010) is dimensioned for use in Berson Inline+ UV systems and has a length of 695 mm. It is produced in F240 quartz glass, which blocks UV radiation below 240 nm and provides suitable protection and performance for the UV lamp. The sleeve encloses the lamp, protects it from contact with water and biofilm, and provides high transmission of useful UV radiation for disinfection. Maintenance guidance: clean the sleeve annually and replace it every three to five years for maximum UV output. Please get in touch if you are unsure whether this sleeve fits your UV system. Compatible with F240. Product group: UV Quartz Sleeves. Sales unit: pcs.