Compare Quick view PENTAIR D-AH4001B - New (S2), See Description USD 0.00 ELECTRIC HEATER 400W 0+F-100+F 115V S2 - All S2 designated products are new, never used items that will have been repackaged in Service-Asia or custom packaging. These surplus items may not come with manuals or other accessories that would normally be... USD 0.00 Compare Quick view