We have an under sink water filter. These things cost about fifty bucks for just the canister. You can't completely empty them. We use our moho for about 3-4 weeks out of the year. Cant we somehow use...
I noticed some time back that they started using some odd sized filters that are silly expensive. For that kind of money you could buy a new housing (I think I paid <$30) and get a twin pack of filters for $10 and be money ahead after that.