Replacement Quartz Sleeve for SITA SMP 35 / 50 / 70 / 105, MP1403, 625 mm x 38 mm, article 3819-0111. Data: overall length 625 mm, outside diameter 38 mm. OEM reference: MP1403. Fits: SITA SMP 35, SITA SMP 50, SITA SMP 70, SITA SMP 105. 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 SMP series data: medium-pressure lamps from 300 W to 12 kW, lamp life up to 10,000 h, in-line chamber in AISI 316L, 10 bar. 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).