# Pet Water Fountain Oneisall PW04 — 3.5 L Capacity, Continuous Flow

**URL:** https://aio.lv/en/product--oneisall-pw04--11504833
**Data updated:** 2026-05-24 13:02 (EEST)
**Category:** Cages, Shelters & Feeders
**Manufacturer:** Oneisall
**Manufacturer code:** PW04
**EAN:** 6934399227004
**Warranty:** 1 Year
**Availability:** Out of stock

## Summary description

Oneisall PW04 pet water fountain is a 3.5 L drinking solution designed to provide a continuous flow of fresh water for cats and small dogs. The unit maintains circulating water to encourage pets to drink, helps reduce stagnant water, and is suitable for home use. Easy to refill and clean, it supports daily hydration and convenience for pet owners.

## Long description

Oneisall PW04 is a 3.5 L cordless pet fountain designed to provide cats with continuous access to fresh, filtered water. The unit combines a stainless steel bowl with a large reservoir and a transparent viewing window for easy water level checks. Its wireless design allows flexible placement around the home and reduces the risk of pets chewing cords.
Advantages
The fountain uses 304 stainless steel and ABS components for improved hygiene and durability compared with typical plastic drinkers. A 5000 mAh battery supports up to 60 days of operation on a single charge, and the DC 5V/1A energy-efficient design minimizes power use. An ultra-quiet pump keeps noise below 30 dB, while an activated carbon filtration stage removes hair, dust and other impurities to improve water taste and quality.
Suitable for
Single-cat households
Homes with multiple cats
Owners who need a low-maintenance water solution
Places where a cordless fountain is preferred (living room, balcony, garden)
Key specifications
Capacity: 3.5 litres
Materials: 304 stainless steel and ABS
Battery capacity: 5000 mAh
Rated voltage: DC 5V / 1A
Charging port: USB-C
Working time on a single charge: up to 60 days
Noise level: approximately 30 dB
Approximate weight: 0.95 kg
Approximate dimensions: 20 x 20 x 5 cm
How to use
Fill the reservoir with potable water and place the fountain on a stable, level surface. Select one of the three operating modes—Sensor (dispenses when a cat approaches within about 1 metre), Intermittent (dispenses 30 seconds every 30 minutes) or Constant (continuous flow while connected to power)—according to your pet’s habits. Charge the unit via the USB-C port before first use and recharge as needed. Clean the stainless steel bowl and filters regularly by hand or in the dishwasher where applicable, and replace the activated carbon filter according to the manufacturer’s guidance to maintain water quality.
Usage recommendations
To maintain hygiene and pump performance, rinse the reservoir and clean the filter at least once a week. Use fresh tap or filtered water and check the transparent window periodically to ensure the water level remains sufficient for your pet.

## FAQ

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Oneisall products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Oneisall service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

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