
Icepure Under Sink Filter
Score: 88/100
Waterdrop TSA
Score: 82/100Rankings

The ICEPURE Under Sink Water Filter System is a high-capacity, single-stage carbon block filter designed for quick, tool-free installation and long-lasting performance. Its main limitation is the inability to reduce TDS or handle hot water applications. It is ideal for users seeking a low-maintenance upgrade for municipal water taste and safety.

The Waterdrop TSA is a compact, 8-stage under-sink filtration system designed to reduce over 100 contaminants while retaining beneficial minerals. It lacks TDS reduction capabilities and is limited to cold municipal water. It is best suited for renters or DIYers wanting a quick, low-maintenance upgrade for taste and safety.
| Attribute | ![]() | ![]() |
|---|---|---|
2.5 gallons per minutebest | 1 gallons per minute | |
36 monthsbest | 18 months | |
1 | 8best | |
22,000 gallonsbest | — | |
1 yearsbest | 1 yearsbest | |
| ↓ lower better | 15.55 inchesbest | 16.93 inches |
| ↓ lower better | 5.39 inchesbest | 6.65 inches |
| ↓ lower better | 6.81 inchesbest | 14.88 inches |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Dimensions & Fit(3) | ||
Height (inches) | 15.55 inches | 16.93 inches |
Width (inches) | 5.39 inches | 6.65 inches |
Depth (inches) | 6.81 inches | 14.88 inches |
Performance & Filtration(7) | ||
Certifications | NSF/ANSI 42 | NSF/ANSI 372 |
Contaminants Removed | Heavy Metals, Chlorine, PFOA/PFOS | PFAS, Chlorine, Heavy Metals |
Flow Rate (gallons per minute) | 2.5 gallons per minute | 1 gallons per minute |
Filter Life (months) | 36 months | 18 months |
Filtration Stages | 1 | 8 |
Filter Capacity (gallons) | 22000 gallons | null gallons |
Filtration Technology | Carbon Block | Multi-Stage Carbon/KDF/Resin |
Installation & Compatibility(1) | ||
Operating Pressure (psi) | 60 psi | 125 psi |

Products in the top-left offer the best value (high score, low price).

Professional reviewers highlight the ICEPURE system as a high-capacity, budget-friendly alternative to shorter-life filters, emphasizing its authoritative NSF certifications and premium 0.5-micron filtration capabilities.
Everyday users generally praise the product for its improved water taste, long filter life, and simple installation process, with no recurring complaints documented.




Professional reviewers and editors praise the Waterdrop TSA for its compact design, quick installation, and comprehensive 8-stage filtration that targets harmful contaminants like PFAS and heavy metals.
Everyday users commonly praise the ease of installation and report significant improvements in water taste, with some finding the lack of TDS reduction limiting.