NOTE: preventative maintenance is to be performed at intervals of 1-year, 2-years and 4-years or 6,000, 12,000 and 24,000 hours - whichever comes first.
Annual Maintenance (1-year) Kit includes: pre-filter replacement element and drain service kit. This kit includes all service components for both drain types.
Maintenance Kit A (2-year) includes: desiccant cartridges, pre-filter replacement element, drain service kit, sealing o-rings with washers and service manual.
Maintenance Kit B (4-year) includes: all of the above componenets in the 2-year kit plus a complete valve service kit and service manual.