Replacement Quartz Sleeve for SITA UV412 / 40-80 Series, SI028105, 900 mm x 23 mm, article 3802-0508. Data: overall length 900 mm, outside diameter 23 mm. OEM reference: SI028105 / 028105 / 28105. Fits: SITA 550 Plus LCD Rack, SITA 800 Plus LCD, SITA UV PE 22, SITA SRL 80/8, SITA Pallas 705 S, SITA UV Rack 80/1, SITA UV Rack 80/2, SITA UV Rack 80/3, SITA UV Rack 80/4, SITA UV Rack 80/5, SITA LCD 412, SITA LCD 440, SITA LCD 450, SITA LCD 480, SITA LCD 550. Takes lamps SI0028104 (40 W) and SI0028124 (80 W); sealed by O-ring SI028061 (23 x 4 mm). Supplied as a replacement part made to the dimensions and electrical data of the original; the OEM reference is given for identification. The quartz sleeve isolates the lamp from the water and passes the germicidal UV into the chamber. It fouls with hardness, iron and manganese deposits and is cleaned or replaced when the UV intensity reading cannot be recovered. Check overall length, outside diameter and whether one end is domed (closed) before ordering, and replace the sealing O-rings whenever the sleeve is removed. SITA LCD / Rack LCD series data: low-pressure 40-80 W lamps, 9,000-10,000 h lamp life, 1-40 m3/h, chamber in AISI 304 or 316L. Spare part for UV disinfection systems of S.I.T.A. srl, Genoa, Italy, which builds low-pressure, amalgam and medium-pressure UV units for drinking water, food and beverage, aquaculture, swimming pool, marine and wastewater duty (series AL, LCD / Rack LCD, AM, IT, 440, HDPE, SBT, SMP, SSD, TOC, GR and Pool).