Aquasana Claryum Direct Connect Under vs Aquasana Countertop Water Filter AQ-CWM2-B: Spec Comparison
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This guide compares the aquasana claryum direct connect under vs countertop water filter aq models. Both systems use Claryum technology to remove up to 99% of 78 contaminants while retaining healthy minerals. They share a similar filtration approach and environmental focus. The main difference lies in their design and installation. One unit mounts under your sink, while the other sits on your counter. You need to decide which form factor fits your kitchen layout and plumbing setup.
Key differences
| Aspect | Aquasana Claryum Direct Connect Under Sink | Aquasana Countertop Water Filter AQ-CWM2-B |
|---|---|---|
| Design | Under sink | Countertop |
| Installation Type | Under sink | Countertop |
| Dimensions | 4 x 4 x 20.5 inches | 7.96 x 9.69 x 11.6 inches |
| Weight | 5 pounds | 6.2 pounds |
| Filtration Type | Carbon filtration | Claryum Technology |
Which one should you choose?
Choose Aquasana Claryum Direct Connect Under Sink if
- You want to save counter space by installing the unit under your sink
- You prefer a system that connects directly to your cold water line
- You need a compact footprint that fits inside a standard cabinet
Choose Aquasana Countertop Water Filter AQ-CWM2-B if
- You want a filter that requires no plumbing or installation
- You prefer a portable unit that sits on your countertop
- You want to avoid drilling holes or connecting water lines
Verdict: Choose the under sink model if you want a permanent, space-saving installation that connects to your plumbing. Pick the countertop model if you need a plug-and-play solution that requires no tools or professional help. Both provide high-quality filtration using the same core technology.
Aquasana Under Sink vs Countertop
Installation type
Product A is an under sink unit designed for direct connection to your cold water line. It requires no dedicated faucet or drilling into your countertop, though you do need 3 inches of clearance for filter changes. Product B sits on your counter and needs no plumbing at all. You simply fill the reservoir and wait. If you rent or cannot modify your kitchen structure, Product B is the easier choice. If you have cabinet space and want hidden plumbing, Product A fits better.
Physical dimensions
Product A measures 4 by 4 by 20.5 inches and weighs 5 pounds. It is tall and narrow, designed to fit vertically under a sink. Product B is wider and shorter, measuring 9.69 by 7.96 by 11.6 inches. It weighs 6.2 pounds. The countertop model takes up more surface area but has a lower profile. You need to check your counter space for Product B and your under-sink clearance for Product A. Both are compact, but their shapes suit different locations.
Filtration method
Both systems use Claryum technology to remove up to 99% of 78 contaminants, including lead, PFAS, and mercury. They both retain healthy minerals like calcium and magnesium. Product B uses Power Activated Filtration to force water through an ultra-dense block, producing an 8-ounce glass in 8 seconds. Product A uses standard carbon filtration connected to your line. The core cleaning power is identical. The difference is how the water moves through the filter media. Both retain minerals and do not reduce TDS.
Filter lifespan
Product B states its filter lasts up to 300 gallons or 6 months. It also claims to last 7.5 times longer than leading pitcher filters. Product A mentions one filter replaces more than 6,250 plastic bottles, but does not list a specific gallon capacity or time frame in the provided data. Without a specific capacity for Product A, we cannot definitively compare longevity. You should check the manual for Product A’s exact replacement schedule. Product B gives you clear metrics for planning.
Water flow rate
Product B delivers an 8-ounce glass in 8 seconds. This is a manual fill process. You pour unfiltered water in and wait for the filtered output. Product A connects to your faucet line. It provides continuous water on demand, limited only by your home’s water pressure and the filter’s flow rate. The data does not list gallons per minute for Product A. For quick access to drinking water without waiting, Product A is more convenient. For batch filtering, Product B works fine.
Which aquasana filter suits your space
Renters needing no installation work
You should choose the countertop model if you cannot modify your plumbing. It requires no water line connections or professional installation. The unit sits on your counter and uses gravity flow. You simply replace the filter every six months or after 300 gallons. This setup offers immediate clean water without any permanent changes to your kitchen fixtures or cabinets.
Homeowners with under sink space
Choose the under sink unit if you have a 3-inch clearance for maintenance. It connects directly to your cold water line for instant access. The system measures 4 by 4 by 20.5 inches and weighs 5 pounds. It fits discreetly under your sink. You get filtered water directly from your existing faucet without needing a separate pitcher or dedicated tap.
Users prioritizing compact footprint
The under sink system offers a smaller physical footprint on your counter. It hides completely beneath your sink, saving valuable workspace. The countertop version is larger, measuring 9.69 by 7.96 by 11.6 inches. If you want to keep your counter clear for food prep or other appliances, the hidden installation of the under sink model is the practical choice for your layout.
The products compared
Aquasana Claryum Direct Connect Under Sink
Best for: retaining minerals without dedicated faucets
- Design
- Under sink
- Certification
- WQA
- Contaminants Removed
- Lead, PFAS, mercury, asbestos
- Installation Type
- Under sink
- Features
- Chlorine Reduction
- Dimensions
- 4 × 4 × 20.5 inches
View on Amazon: Aquasana Claryum Direct Connect Under Sink Affiliate link
This Aquasana under-sink system attaches to your existing cold water line without a dedicated faucet. It uses carbon filtration to remove up to 99% of 78 contaminants, including lead and PFAS, while retaining healthy minerals. The unit measures 4 x 4 x 20.5 inches and weighs 5 pounds. It fits well in tight spaces, requiring only 3 inches of clearance for filter changes.
Pros
- No dedicated faucet or countertop drilling required
- Retains beneficial minerals like calcium and magnesium
- Removes up to 99% of 78 contaminants
- Compact 4 x 4 x 20.5 inch footprint
Cons
- Does not reduce total dissolved solids (TDS)
- Requires 3 inches of clearance for filter changes
- May need a pre-filter in hard water areas
Good fit if
- You want to keep natural minerals in your water
- You cannot drill a new hole in your countertop
- You have limited vertical space under the sink
Skip if
- You need to reduce total dissolved solids
- You have extremely hard water without a pre-filter
- You need a countertop or faucet-mounted unit
Verdict: Aquasana Claryum Direct Connect Under Sink is a practical choice for homeowners who want contaminant removal without altering their kitchen layout. It suits those who prefer mineral-rich water and have tight under-sink clearance.
Aquasana Countertop Water Filter AQ-CWM2-B
Best for: Renters needing easy installation and mineral retention
- Design
- Countertop
- Contaminants Removed
- Lead, PFAS, microplastics, mercury
- Installation Type
- Countertop
- Dimensions
- 9.69 × 7.96 × 11.6 inches
- Weight
- 6.2 pounds
View on Amazon: Aquasana Countertop Water Filter AQ-CWM2-B Affiliate link
This countertop unit uses Claryum technology to reduce 99% of 78 contaminants, including lead and PFAS. It retains healthy minerals like calcium and magnesium without lowering TDS. The system delivers an 8-ounce glass in 8 seconds. It measures 7.96 by 11.6 by 9.69 inches and weighs 6.2 pounds. You do not need plumbing for installation. It suits renters or those who want flexible placement.
Pros
- Reduces up to 99% of 78 contaminants including lead and PFAS
- Retains beneficial minerals like calcium and magnesium
- Delivers filtered water in 8 seconds
- Requires no plumbing or professional installation
Cons
- Takes up counter space with a 6.2-pound footprint
- Does not reduce total dissolved solids (TDS)
- Requires filter replacement every 300 gallons or 6 months
Good fit if
- You rent and cannot modify plumbing
- You want to retain natural minerals in your water
- You need a quick setup without tools
Skip if
- You have limited counter space
- You prefer under-sink installation
- You want to reduce TDS levels
Verdict: Aquasana Claryum Countertop Filter is a solid choice for renters who need easy installation and mineral retention. It fits buyers who prioritize contaminant reduction over TDS removal and have space for a countertop unit.
Specifications side by side
| Spec | Aquasana Claryum Direct Connect Under Sink | Aquasana Countertop Water Filter AQ-CWM2-B |
|---|---|---|
| Design | Under sink | Countertop |
| Certification | WQA | not stated |
| Contaminants Removed | Lead, PFAS, mercury, asbestos | Lead, PFAS, microplastics, mercury |
| Installation Type | Under sink | Countertop |
| Features | Chlorine Reduction | not stated |
| Dimensions | 4 × 4 × 20.5 inches | 9.69 × 7.96 × 11.6 inches |
| Weight | 5 pounds | 6.2 pounds |
| Size | Complete Filter System | Filter System - AQ-CWM2-B |
| Color | Filter System - AQ-MF-1 | Filter System - AQ-CWM2-B |
| Model | Aquasana | AQ-CWM2-B |
Frequently asked questions
Which filter is smaller for tight spaces?
The Aquasana Claryum Direct Connect Under Sink is the more compact option. It measures 4 inches wide and 20.5 inches tall. This slim profile fits easily under most sinks. The countertop model is wider at 7.96 inches and deeper at 9.69 inches. You need more counter space for the countertop unit.
Does the under sink model require a dedicated faucet?
No, the under sink model does not need a dedicated faucet. It connects directly to your existing cold water line. This keeps your kitchen layout unchanged. You can use your current faucet for filtered water. The countertop version uses a separate spout on the unit itself.
How much weight can my counter handle?
The countertop filter weighs 6.2 pounds. This is slightly heavier than the under sink filter, which weighs 5 pounds. Both weights are manageable for standard countertops. The under sink unit holds its weight against your cabinet base. The countertop model sits freely on your surface.
Can I use the under sink filter if I rent?
The countertop model is better for renters. It requires no plumbing modifications or drilling. The under sink system needs connection to your water line. This often requires landlord permission or professional installation. Renters usually prefer the plug-and-play nature of the countertop unit.
Which unit retains healthy minerals in water?
Both units retain healthy minerals. They use Claryum technology to remove contaminants while keeping beneficial minerals. This results in mineral-rich water for both models. The under sink version delivers this through your existing faucet. The countertop version provides it through its own spout.
Is there a difference in filter dimensions?
Yes, the dimensions differ significantly. The under sink filter is 4 by 4 inches with a height of 20.5 inches. The countertop filter is 7.96 inches wide and 9.69 inches long. Its height is 11.6 inches. The under sink unit is taller but narrower. The countertop unit is shorter but wider.
Which is easier to install for DIYers?
The countertop model is easier to install. It requires no tools or water line connections. You simply place it on your counter. The under sink model needs direct connection to your cold water line. You may need to check for clearance behind your sink. The countertop version is simpler for immediate use.

