Limited-Time Offer
50% OFF
8 Filter Cartridges + 8 Pre-Filter Sponges + 8 Pump Sponges
Offer Ends In 00 : 00 : 00
GULUNOOK Aqua Flow 4L Fountain Replacement Filters (8-Pack)

GULUNOOK Aqua Flow 4L Fountain Replacement Filters (8-Pack)

$24.99 USD
Sale price  $24.99 USD Regular price  $49.99 USD
Skip to product information
GULUNOOK Aqua Flow 4L Fountain Replacement Filters (8-Pack)

GULUNOOK Aqua Flow 4L Replacement Filters for Pet Water Fountain – 8-Pack

Keep your pet’s water fresh with a complete replacement filter set designed for the GULUNOOK YSJ402 4L Pet Water Fountain.

$24.99 USD
Sale price  $24.99 USD Regular price  $49.99 USD

💧 Designed for GULUNOOK YSJ402

Made for the GULUNOOK 4L Pet Water Fountain.

📦 Complete 8-Pack Filter Set

Includes 8 filter cartridges, 8 pre-filter sponges, and 8 pump sponges.

✨ Helps Reduce Hair, Debris & Odors

Supports routine fountain maintenance and helps keep water cleaner.

163 Pet Parents are choosing GULUNOOK right now
Payment methods
  • American Express
  • Apple Pay
  • Cartes Bancaires
  • Diners Club
  • Discover
  • Google Pay
  • JCB
  • Maestro
  • Mastercard
  • Union Pay
  • Visa

Free U.S. Shipping

On all orders

3–5 Day Delivery

Ships from U.S. warehouse

30-Day Returns

Shop with confidence

24-Hour Support

We're here to help

Compatibility & Filter Replacement

These replacement filters are designed for the GULUNOOK YSJ402 4L Pet Water Fountain.

Don't have the fountain yet? Explore the GULUNOOK 4L Pet Water Fountain.

When should I replace the filters?

Replacement frequency depends on your pet's drinking habits, the number of pets using the fountain, and water conditions. Check the filters regularly and replace them when they become visibly dirty or as needed to maintain proper water flow.

For best results, clean the fountain and pump regularly when replacing the filters.

Filtration & Filter Care

A complete filter set for routine fountain maintenance.

  • Filter Cartridges: Help reduce hair, debris, and odors in your pet's drinking water.
  • Pre-Filter Sponges: Help capture larger particles, such as loose hair and debris, before they reach the pump.
  • Pump Sponges: Help keep debris away from the pump during normal operation.

Filter Care Tips

  • Rinse or prepare replacement filters according to the product instructions before use.
  • Replace dirty or worn filters as needed.
  • Clean the fountain and pump regularly to help maintain proper water flow.

Note: Filters help maintain water cleanliness but do not replace regular cleaning or fresh water.

How to Replace the Filters

Replacing your fountain filters is simple.

  1. Unplug the fountain before opening it or handling the pump.
  2. Remove the used filter cartridge and sponges.
  3. Clean the fountain and pump as needed.
  4. Install the new filter cartridge, pre-filter sponge, and pump sponge in their designated positions, following your fountain's instructions.
  5. Refill the fountain with water and ensure the pump is fully submerged before reconnecting the USB power.

If the pump does not start or water does not flow: Unplug and reconnect the USB power several times, and check that the pump is fully submerged and properly positioned.

What's Included

Each replacement filter set includes:

  • 8 × Filter Cartridges
  • 8 × Pre-Filter Sponges
  • 8 × Pump Sponges

Compatibility: Designed for the GULUNOOK YSJ402 4L Pet Water Fountain.

Please check your fountain model before ordering to ensure compatibility.

Fountain, pump, and other accessories are not included.

Shipping & Returns

Shipping

Shipping options, estimated delivery times, and applicable shipping charges are displayed at checkout.

Returns

Please refer to our Return Policy for eligibility, time limits, and instructions for requesting a return.

Need Help?

If you have questions about filter compatibility, installation, or your order, contact us at support@gulunookpet.com. Our support team aims to respond within 24 hours.

Frequently asked questions

1. COMPATIBILITY & WHAT'S INCLUDED
Q: Which pet water fountain are these replacement filters compatible with?

A:These GULUNOOK 4L replacement filters are designed for the GULUNOOK YSJ402 4L Pet Water Fountain. Please check your fountain model before ordering to ensure a proper fit.

Q: What is included in the GULUNOOK 4L replacement filter pack?

A: Each replacement filter set includes:

  • 8 filter cartridges
  • 8 pre-filter sponges
  • 8 pump sponges

This complete replacement set helps you maintain your GULUNOOK 4L pet water fountain. The fountain and pump are sold separately.

2. FILTRATION & REPLACEMENT
Q: What do pet water fountain replacement filters do?

A: The filter cartridges help reduce hair, debris, and odors in your pet's drinking water. The pre-filter sponges help capture larger particles before they reach the pump, while the pump sponges help keep debris away from the pump. Regular filter replacement and fountain cleaning help maintain water cleanliness and proper operation.

Q: How often should I replace my GULUNOOK water fountain filters?

A: Replacement frequency depends on your pet's drinking habits, the number of pets using the fountain, and water conditions. Check the filters regularly and replace them when they become visibly dirty, worn, or as needed to maintain proper water flow. Clean the fountain and pump regularly as part of routine maintenance.

3. INSTALLATION & MAINTENANCE
Q: How do I replace the filters in my GULUNOOK 4L pet water fountain?

A: Unplug the fountain before replacing the filters. Remove the used filter cartridge and sponges, then clean the fountain and pump as needed. Install the new filter cartridge, pre-filter sponge, and pump sponge in their designated positions according to your fountain's instructions. Refill the fountain and ensure the pump is fully submerged before reconnecting the USB power.

Q: Why is my pet water fountain not flowing after I replace the filters?

A: First, check that the pump is fully submerged and correctly positioned. Make sure the filter components are installed properly and are not blocking the water intake. If the pump does not start, unplug and reconnect the USB power several times. If the issue continues, contact our support team at support@gulunookpet.com for assistance.

4.ORDERS, SHIPPING & SUPPORT
Q: How long does shipping take for GULUNOOK replacement filters?

A: Available shipping methods, estimated delivery times, and applicable shipping charges are shown at checkout. Delivery estimates may vary depending on the destination and shipping method selected.

Q: Can I return my replacement filters if I order the wrong model?

A: Please review our Return Policy for return eligibility, time limits, and instructions before requesting a return. If you're unsure whether these filters fit your fountain, contact us at support@gulunookpet.com before ordering. Our support team aims to respond within 24 hours.

Complete Your Pet’s Hydration Setup

Discover the GULUNOOK 4L Pet Water Fountain for fresher, flowing water your pet can enjoy every day.

Aqua Flow 4L Fountain

Aqua Flow 4L Fountain

Aqua Flow 4L Fountain

$49.99 USD
Sale price  $49.99 USD Regular price  $99.99 USD