Quartz sleeve for Berson Inline+ / B2020H - 410 mm, F240 (SKU: 10226-0813). This quartz sleeve (original no. 8.55.024) is sized for Berson Inline+ systems and the B2020H. It is 410 mm long and made from specially treated quartz glass that blocks UV radiation below 240 nm, providing extra protection against unwanted short-wave UV. The sleeve ensures the UV lamp is kept dry and clean, while providing high transmission of UV radiation in the desired wavelength range for efficient water treatment. Maintenance tip: The quartz sleeve should be cleaned once a year and replaced every 3-5 years to ensure optimal UV performance. See our guide to cleaning quartz sleeves. Key benefits: Fits Berson Inline+ and B2020H. Length: 410 mm - F240 type glass. Blocks UV radiation below 240 nm. Protects the lamp and improves operational stability. Long service life and high UV transmission. Please contact us if you are unsure whether this quartz sleeve fits your UV system.