CTM-01 is tested in accordance with NSF standard but no certification. About RM300 in local online shopping portals. RC is RM150, can be cheaper if use discount code. Good option under affordability category.
Here the tips for you the save even more:
Exsakai really hate his 3M easy complete, now he has a spare filter head since he already switched over to aquaphor. Buy the filter head from exsakai cheap cheap ( I'm sure he will sell cheap cheap like RM20 because he really dislike it so much)   Then buy the RC from Lazada RM150 and voila !! 

TEsco Pusat Bandar Puchong but I think they priced it at RM399 RRP. You can also buy directly from 3M Malaysia @ RM299 (with free gifts) now before applying any discount voucher. Or if you can wait till 12am midnight tonight to check if there is any 12.12 special discount voucher.
http://www.11street.my/productdetail/3m-ct...ommand-32590520

I bought one at Tesco Bukit Puchong last 2 weeks, priced at RM298.70.