Both filters have an advanced dual stage carbon block filtration system. You do not have to worry about cartridge change is easy and smooth as always. The filter comes with a complete installation manual. You can hire a plumber for the installation or do it yourself.
Reviews
homedepot.com: 2019-2021 – DWS-1000
- Installation was a challange. The connection that came with the system does not work with all sinks, including ours. It took a phone call to customer service and couple trips to the store to get the correct fitting. Once completed, we love it.
- The water tastes great!
- The faucet is a 1/4 turn valve that doesn’t leak and is easy to operate.
- DWS 1000 has lower filtration capacity compare with DWS 2500 T-CN of 2,800L.
Lower flow rate of 2.27L compare with 2.85L and DWS 2500 T-CN has a better micron rating of 0.2 μ(micron) Absolute. For ~Rm500 (USD120) different, imo the DWS 2500 T-CN offer a better filtration, it’s almost like a mini AP 902 with carbon. Replacement cost 😅 for every 6months. - If you want big brand and NSF, then 3M. If you want to save cost, GOST+LGA Standards is enough.
- Easy Complete come with only 1 cartridge; Capacity 750 Gallons (2,839 Litres) while DWS 1000 come with 2 cartridges; Capacity 625 Gallons (2,365 liters)
The Main Differences of DWS1000 vs DWS2500T-CN
- DWS2500T-CN reduces mercury, heavy metal and DWS-1000 does not.
- Cartridge life monitoring system – DWS1000: Automatic shutoff water meter vs DWS2500T-CN: Smart LED indicator
- Flow rate of DWS-1000: 2.3 Litre per minute – lpm vs Flow rate of DWS2500T-CN: 0.75 gpm (2.84 Litre per minute – lpm)
3M NSF Certification on NSF Website
Purchase from 3M Authorised Dealers
Aqua Pure DWS-1000 (Undersink)
Dual-stage filtration system
- Reduction Claim: MTBE, Chlorine taste and odour, Sediment & rust, Lead & parasitic protozoan cysts, VOCs
- Certification NSF/ANSI: Standard 42 for Reduction of Chlorine, Nominal Particulate Reduction Class I, and Taste & Odor | Standard 53 for Reduction of Cyst, Lead, MTBE, Turbidity and VOC (all in the list)
- Micron rating: 0.5 Nominal
- Flow rate: 2.3 Litre per minute – lpm
- Inlet/Outlet Size: 1/4″ (0.64 cm) tube
- Cartridge life monitoring system – DWS1000: Automatic shutoff water meter
Photo: AP DWS-1000 Undersink water filter by 3M
Purchase from 3M Authorised Dealers
PM Seller for installer if you need one.
Price of DWS-1000:
Malaysia – RM 1,794.00 (Authorised reseller: ATKC eWarehouse) 
USA: DWS-1000 – USD 289 (with faucet) – 3M Water Filtration Systems Authorised dealers in the US
Replacement Cartridges:
AP DWS 80/90 (two) Cartridge for AP DWS1000. Capacity: 625 gallons (2,365 liters) or 6 months
Malaysia – AP DWS 80/90 at RM 500 (from Authorised Dealer: ATKC @ Lazada)
DWS2500T-CN (Undersink)
Dual-stage filtration Undersink 3M AP DWS2500T-CN with smart LED cartridge life monitoring system
- Reduction Claim: MTBE, Chlorine taste and odour, Sediment & rust, Lead & parasitic protozoan cysts, VOCs, mercury, heavy metal, 99.99% of all waterborne bacteria
- Certification NSF/ANSI: Standard 42 for Reduction of Chlorine, Nominal Particulate Reduction Class I, and Taste & Odor | Standard 53 for Reduction of Cyst
- Micron rating: 0.2 micron Absolute, @ 95%
- Flow rate: 0.75 gpm (2.84 Litre per minute – lpm)
- Inlet/Outlet Size: 1/4″ (0.64 cm) tube vs. 3/8″ push in tubing
- Cartridge life monitoring system – DWS2500T-CN: Smart LED indicator
Price
RM 2,033 (buy from Authorised Dealer: XAMMAX @ Lazada)
Replacement (Two) Cartridges
DWS2500-C-CN & PFS2500C-CN – RM 752 at XAMMAX
- Capacity: 750 Gals (2,839L) 6-9 months. Max 12 months
Aqua Pure Easy Complete
Single-stage filtration system
- Reduction Claim: MTBE, Chlorine taste and odour, Sediment & rust, Lead & parasitic protozoan cysts, VOCs
- Certification NSF/ANSI: Standard 42 for Reduction of Chlorine, Nominal Particulate Reduction Class I, and Taste & Odor | Standard 53 for Reduction of Asbestos, Cyst, Lead, Mercury, Toxaphene Reduction and selected VOC: Atrazine, Benzene, Carbofuran, Lindane, P-Dichlorobenzene
- Micron Rating: 0.5
- Flow rate: 2.84 Litre per minute – lpm
Price
Malaysia: Xammax – RM596 (Undersink)
USA: aquapurefilters.com: USD129.04
- Replacement Cartridge: 750 gal (2,839L). 6 to 9 months.
Reviews of 3M Indoor Water Filters
The water taste great. If you want NSF certified, then choose 3M. If you want to save cost, GOST+LGA Standards is enough. DWS 2500 T-CN has a better micron rating of 0.2 μ Absolute and higher flow rate compared to DWS 1000. For ~Rm500 difference, imo it is better option.
3M AP902 Outdoor/ Whole House Filter
- Xammax 3M AP902: RM1,144 | Installation RM250 (PM seller for contact)
- Replacement Cartridge AP910R: RM576
- Removes sediments, particulate, sand & rust. Filters down to 5 microns (nominal).
- Outdoor Water Filter Whole House Filtration
- Components certified by NSF International NSF/ANSI Standard 42.
- FDA CFR-21 compliant material.
- REVIEWS (tanshuyin.com): “With this 3M’s AP902 installed, we experience cleaner dishes and clothes, and I believe cleaner skin and shinier hair. AP902 does not filter chlorine which is actually important as chlorine acts as a disinfectant for water stored in these tanks. AP902 do not requires backwash, it provides expected filtration performance every time after the new cartridge replaced.”
3M Water Filtration System Authorised Dealers/ Suppliers Malaysia
XAMMAX, ATKC eWarehouse, Topware Solutions, BWS Sales & Services, Top Idea, Sanihome
Plumber for installation: Mr Siew (+6012-364 6949) – Around RM250
