Silt Reduction Kit for PowerSurvivorsPart Number 8012859 This kit protects pump and membrane from excessive exposure to silt and other suspended particulates. It should be used in places such as glacier bays, inland waterways, brackish waters, or shallow waters where the bottom may be agitated. The kit contains 1 amp 12v booster pump, 2. 5 micron prefilters, and all fittings. This kit fits the PowerSurvivor 40E but is also compatible with older models such as the PowerSurvivor 80E and