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Give it purpose - fill it with water filters, air filters, refrigerator filters, and more.
The 3M Model A1 Replacement Cartridge is designed for use in 3M Recreational Vehicle / Marine Filtration Systems US-A1, WV-B2 and US-B1. Part number 5610429.
Model A-1 Specifications:
The A1 should be changed every 6-8 months or 2000 gallons depending on water quality and usage.
|Model A1 is used in the following Models|
3M System WV-B2
3M System US-B1
3M System US-A1