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ol__yeller's avatar
ol__yeller
Explorer II
Mar 06, 2015

Water Filters

When I winterized, I pulled my water filter cartridge out as normal with the idea that I would replace it in the Spring. To my surprise I find that it costs anywhere from $50 to $80 to buy a replacement. There are none available on Amazon under Amazon Prime and the dealership wants $77 for it. It is a 3M filter for recreational vehicle/marine undersink Model A1. Others offer it for less but when shipping is applied, it goes right up to $60-$70. Isn't that a lot for a water filter? I checked to see if it filters out something in particular that is bad for you but it appears to be a run of the mill filter like one would have in their refrigerator at home which I can replace for around $35.

On my previous TT's I installed undersink water filter systems by name brand companies but discovered that after a year the filters became hard if not impossible to find. Is this an industry standard? Is there a filter system that does a good job, isn't exorbitantly expensive and doesn't go into obsolescence in a short time?

22 Replies

  • My new MH had a water filter in the wet bay. Low quality and expensive filters. I removed it and replaced it with a Culligan standard housing that is heavy duty from Amazon for $15. Filters run about $8 each. Culligan are the heavy duty blue filter housings now $18.
  • This will be an interesting thread to follow. We just purchased a different fifth wheel last season which has a whole house filter in it. I did almost the same as you, I pulled out the filter BUT I did save it when I winterized. If the one I need is real expensive I'll be going back to using the blue in-line filters from Walmart. I think they were $17 a piece.

    Dan

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