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Under-Sink & Countertop Filtration Under $500

39 of 42 models under $500 · Published in Sep 2026

39 of the 42 under-sink & countertop filtration we track come in under $500. The differences that matter at this price are the ones we score in the full list. At this level the differences are build quality and service rather than specifications, so weigh warranty and parts availability. We keep the same ranking criteria as the full list. See all Under-Sink & Countertop Filtration >

Shop by price: Under $100 · Under $200 · Under $500

Under-Sink & Countertop Filtration Under $500

Waterdrop BFU1 Bathroom Sink Filter for Skincare, Strontium-enriched
Waterdrop
Waterdrop BFU1 Bathroom Sink Filter for Skincare, Strontium-enriched
$89.99
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Waterdrop BFU3 Bathroom Sink Filter for Skincare, Reduces Chlorine & Scale
Waterdrop
Waterdrop BFU3 Bathroom Sink Filter for Skincare, Reduces Chlorine & Scale
$69.99
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Waterdrop WHF21-PBL 2-Stage Whole House Water Filter System, NSF/ANSI 372
Waterdrop
Waterdrop WHF21-PBL 2-Stage Whole House Water Filter System, NSF/ANSI 372
$179.99
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Waterdrop TK-S Gravity Water Filter System, NSF/ANSI 42&372 Standard
Waterdrop
Waterdrop TK-S Gravity Water Filter System, NSF/ANSI 42&372 Standard
$199.99
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DREO Reverse Osmosis Water Filter Countertop System, RO Water Filter 113 5L
DREO
DREO Reverse Osmosis Water Filter Countertop System, RO Water Filter 113 5L
$199.99
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Waterdrop D6 Under Sink Reverse Osmosis Water Filter, 600 GPD, Tankless
Waterdrop
Waterdrop D6 Under Sink Reverse Osmosis Water Filter, 600 GPD, Tankless
$289.00
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Waterdrop G5P700-PRO Reverse Osmosis System, 700 GPD Dual Flow Water Filter
Waterdrop
Waterdrop G5P700-PRO Reverse Osmosis System, 700 GPD Dual Flow Water Filter
$339.99
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Frizzlife Reverse Osmosis Water Filter, Alkaline Mineral, NSF/ANSI 58&53&42&372 Standard, 500GPD 8-Stage Under Sink Tankless RO Water Filtration, 2:1 Pure to Drain, Reduce PFAS, PX500-A, New
Frizzlife AMZ
Frizzlife Reverse Osmosis Water Filter, Alkaline Mineral, NSF/ANSI…
$329.99
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Waterdrop M6HG Instant Hot Countertop RO Water Filter, [ Mineral Added ]
Waterdrop
Waterdrop M6HG Instant Hot Countertop RO Water Filter, [ Mineral Added ]
$329.00
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GLACIER FRESH 2.25G Stainless Steel Countertop Water Filtration System, Gravity-Fed with Elarisey™ Filtration Technology, Reduces Heavy Metals, PFOA & PFOS, and Meets SGS Standards
Glacier Fresh
GLACIER FRESH 2.25G Stainless Steel Countertop Water Filtration System,…
$399.99
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Waterdrop C2S Countertop RO Filtration System, 40oz Autofill Glass Pitcher
Waterdrop
Waterdrop C2S Countertop RO Filtration System, 40oz Autofill Glass Pitcher
$149.99
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Waterdrop C1SL Mineral Reverse Osmosis System Countertop, Room-Temp Water
Waterdrop
Waterdrop C1SL Mineral Reverse Osmosis System Countertop, Room-Temp Water
$229.00
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Waterdrop C1S Countertop Reverse Osmosis Water Filter, 6-Stage Filtration
Waterdrop
Waterdrop C1S Countertop Reverse Osmosis Water Filter, 6-Stage Filtration
$209.00
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Waterdrop A2G Mineral Reverse Osmosis System Countertop, Instant Hot & Cold
Waterdrop
Waterdrop A2G Mineral Reverse Osmosis System Countertop, Instant Hot & Cold
$399.00
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VEVOR Gravity-fed Water Filter System, 2.25G 304 Stainless-Steel Countertop Water Filtration System, Reduces Lead and up to 99% of Chlorine, w/ 2 Carbon Filter, Spigot, Stand
VEVOR
VEVOR Gravity-fed Water Filter System, 2.25G 304 Stainless-Steel Countertop…
$89.90
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GarveeTech Countertop Reverse Osmosis Water Filter, 5-Stage RO Water Filtration System, NSF/ANSI 58, 100GPD, 4:1 Pure to Drain, TDS Real-Time Displaying & 4 L RawTank/1.5 L Pure Tank
GarveeTech
GarveeTech Countertop Reverse Osmosis Water Filter, 5-Stage RO Water…
$159.99
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Gravity-fed Water Filter System, 2.25G Stainless-Steel Countertop Water Filter System with 2 Black Carbon Filters, Metal Water Level Spigot and Stand, for Home, Camping, RV, Emergencies
Garvee_SC
Gravity-fed Water Filter System, 2.25G Stainless-Steel Countertop Water…
$129.99
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Frizzlife Reverse Osmosis Water Filter - Alkaline Mineral pH+, NSF/ASNI 58&53&42&372 Standard, 600GPD Tankless RO Reverse Osmosis System, Under Sink, 2:1 Pure to Drain, Smart LED Faucet, PD6
Frizzlife AMZ
Frizzlife Reverse Osmosis Water Filter - Alkaline Mineral pH+, NSF/ASNI…
$399.99
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GLACIER FRESH GFU03 Reverse Osmosis Water Filter System 800 GPD, Tankless
Glacier Fresh
GLACIER FRESH GFU03 Reverse Osmosis Water Filter System 800 GPD, Tankless
$309.99
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Frizzlife 600GPD Reverse Osmosis Water Filter System, NSF/ANSI 58&53&42&372 Standard, 11 Stage Tankless RO Water Filter, Under Sink Water Filtration, 2:1 Pure to Drain, Reduces TDS, PX600-Bl
Frizzlife AMZ
Frizzlife 600GPD Reverse Osmosis Water Filter System, NSF/ANSI 58&53&42&372…
$429.99
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Frizzlife 600GPD Reverse Osmosis Water Filter System, NSF/ANSI 58&53&42&372 Standard, 11 Stage Tankless RO Water Filter, Under Sink Water Filtration, 2:1 Pure to Drain, Reduces TDS, BPA Free
Frizzlife AMZ
Frizzlife 600GPD Reverse Osmosis Water Filter System, NSF/ANSI 58&53&42&372…
$429.99
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Frizzlife M800 Non-Electric Tankless Reverse Osmosis Water Filter, up to 900GPD Alkaline Mineralized RO Water Filtration System, Huge Filter with Manual Flush, NSF/ANSI 58&372, 4:1 Pure to D
Frizzlife AMZ
Frizzlife M800 Non-Electric Tankless Reverse Osmosis Water Filter, up to…
$263.49
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Frizzlife M800 Non-Electric Tankless Reverse Osmosis Water Filter, up to 900GPD Under Sink RO Water Filtration System, Huge Filter with Auto Flush, NSF/ANSI 58&372, 4:1 Pure to Drain
Frizzlife AMZ
Frizzlife M800 Non-Electric Tankless Reverse Osmosis Water Filter, up to…
$271.99
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Waterdrop G5P700A-PRO Alkaline Mineral pH+ Reverse Osmosis System, 700 GPD
Waterdrop
Waterdrop G5P700A-PRO Alkaline Mineral pH+ Reverse Osmosis System, 700 GPD
$349.99
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Showing 24 of 39 models under $500.

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