Ok friends, I had PM conversation with few people, and it seems like people prefer outdoor filters. Well, let me add my 2 cents once again.

Outdoor filters are not such a good idea most of the time. There are 2 reasons for that:

1. You filter ALL the water now. You're now flushing toilets and mopping floors with filtered water. Depending on how much water you use, you may be wasting a lot of filter resources.

2. Your pipes and tank inside house are not perfect. May contain rush, lead, dirt, bacteria, dead lizards etc.

So making pure drinking water outside doesn't make sense at all, but if you ABSOLUTELY want outside filter, then this is what you can do.

1. 5 micron pleated polyester sediment filter. You just buy 20"BB (black/blue) industry standard housing and you add quality, industry standard pleated filter. A good US made one will be washable and should last you 2 or even 3 years (take it out, inspect, if looks ok, wash and put back). This will remove particles, rust, iron, pretty much everything above 5 micron with very low pressure drop.

2. I would stop on #1, but if your water has way too much chlorine in it and smells horribly even to take a shower, then keep on reading. Second filter is radial flow granulated carbon. Will last about 2 years, will take out most of chlorine, bad smell and taste. And, because of radial flow, you will not experience large pressure drop. Now you can take shower with no chlorine, rust and all other nasty stuff.

Now, to the cost. These things are more expensive, this is why it's extremely important to use industry standard components. Again, same logic, you do not want to depend on one manufacturer, who may go out of business or raise the price because "bro, Ringgit is low nowadays".

Now, how much it SHOULD cost

- A quality 20"BB housing with pressure release should cost you more or less 400RM and it will last lifetime.

- US made, quality sediment filter will cost roughly 250RM (remember, it lasts 2 or even 3 years and is washable)

- Good granular carbon radial flow filter of 20" size is expensive, close to 600RM. But this is really optional. Remember, you will need another housing for it.

I'd say most people should be ok with just sediment filter package for 650-700RM. And guess what, this is what big brands are selling too, but for 1400RM and more. Don't believe me? Check 3M AP902 filter "Removes sediments, partciulate, sand and rust down to 5 microns to provide cleaner water right from the point-of-entry for whole house water usage." Yep, that's it for 1400RM a filter that's made who knows where, just with a big brand name on it. And replacement interval once a year.

Do not get fooled by salesman and big brands

You can DIY, can hire a plumber to install.

Here is the picture of standard 20" BB housing with pressure release valve. You see them outside of some houses. It can take standard filter from any well known brand and if any part of it breaks, many quality manufacturers sell replacements. Your local plumber can easily install one.

Put a quality, US made, polyester pleated 5 micron filter inside and it will outperform any 3M or GE or whatever other overpriced filter.

Valuable info 
Can you comment on the below POE filter. The design for the built-in back wash is very interesting, minimise the requirement of control valves and unsightly messy bypass piping.
Affordably priced at RM468 and replacement cartridge @ RM48.

Nice. Please share the picture after installation. Want to see if this filter can really reduce the ugly piping and valves.