Spec-by-spec
Head to head
Contenders from Automatic Pet Water Fountains, every metric lined up. The winning value in each row is outlined.
PetSafe Multi-Tier Pet Fountain 100oz – Accessible Two-Height Waterer for Senior Pets #3 in Automatic Pet Water Fountains 
Price
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Check price on Amazon →
Rating
★★★★★
★★★★★
Category rank
#3
#16
Filtration Quality
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Reservoir Capacity
100oz – ample for 1–2 pets, 2–3 days typical
85oz (2.5L), ample for single/dual pet
Pump Noise
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Ease of Cleaning
Top-rack dishwasher-safe; moderate assembly required
Disassembles easily, most parts dishwasher-safe
Verdict
Best multi-tier fountain for senior & arthritic pets
Best cordless stainless-steel cat fountain
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