Options and Accessories - Small Generator / Inverter Series     Boost pump - ₤ 110 (5/8" intake hose barb, 1/2" outlet hose barb, 4 feet / 1.2 meter 5/8" wire reinforced intake hose, 10 feet / 3 meter 1/2" braided feed hose) If the high pressure pump is installed less than 2 feet below the waterline or an additional 5 micron pre-filter is added, the installation of an optional boost pump is recommended. Fresh water flush kit - ₤ 67 ( filter housing, active carbon cartridge, 316 SS bracket, 8 screws, shut off valve, 2 hose barb connectors,  Nylon tee, 10 ft braided hose, 316SS hose clamps ) The fresh water flush kit enables you to store your watermaker for up to 10 days without the use of chemicals (biocide). The fresh water flush storage can be repeated every 10 days. Low pressure gauge - ₤ 45 The low pressure gauge indicates when the pre-filters have to be changed.   5 Micron Pre-filter housing (1 filter housing, 1 pre-filter cartridge, 1 bracket, 1 3/4" NPT nipple) Free of charge: An additional 5 micron pre-filter is only recommended in connection with the optional  boost pump   Maintenance Kit - ₤ 75.52 10 Pre-filters, 5 and/or 20 micron (2 ½” x 10”)   1 Spare sea strainer screen   2 Active carbon filters (fresh water flush)   1 Ltr. High-pressure pump oil   Extended Maintenance Kit - ₤ 49   1 Acid cleaning compound   1 Alkaline cleaning compound   2 Storage compounds (Biocide)   1 Complete spare seal and O ring kit (except high pressure pump) Back to small generator / inverter powered watermakers