Offering outstanding 3-stage filtration, increased water movement and vital aeration, Fluval U-Series internal filters are the perfect solution where external filtration is not possible.
U4 Underwater Filter, up to 65 US Gal (240 L)
- Designed for aquarium up to 65 gallons
- Use as a primary filter for smaller aquariums, or supplementary filter for larger aquariums
- Position horizontally for shallow tanks, larger tanks with low water levels, or to create a decorative waterfall feature
- Position vertically against aquarium wall to create currents or customized flow patterns
- Convenient flip-top lid allows for quick and easy access to filter cartridge for maintenance or replacement
- Adjustable 3-way flow control – Top Output for circulation and oxygenation, Integrated Spray Bar for a gentle even flow, and Bottom Output for deepwater agitation
- BioMax biological media included
- Made in Italy
- Ideal for freshwater, saltwater and reptile environments
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Normal items can not be combined with Donation items.
Please checkout items separately.

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FAQs
R Returns and Exchange
D Delivery
Exchange/return of goods* is allowed on a case-by-case basis up to 7 days from the date order is received, provided the items are in the original condition.
- All items should be in original condition, unopened.
- To maintain good hygiene, collars, beds, cages, and all other wearable are not eligible for exchanges or returns.
- A $15 delivery fee will be imposed on each exchange and return. Once the item(s) is returned back to our warehouse, our team will inspect the condition of the item(s) and contact you to issue a refund within 5 working days, if approved.
- [CLEARANCE] is not eligible for refund/exchange.
Exchanging/Refunding of Items:
- We can pick up the items & bring it back to our warehouse - service fee $15
- We will deliverthe exchange items when you make a new order. (The new order needs to be made within 1- 2 weeks from the date of the previous delivery)
- You can drop off the item at our Store at - Block 151 Serangoon North Ave 2 unit 01-79 (S) 550151 (Mondays - Fridays; 10am - 6pm) *WhatsApp 9450 0947 for approval before coming to the store.
- Our team will inspect the condition of the item(s) & contact you thereafter regarding exchange or a refund. Refunds would be issued in the same method of payment as the original payment.
How long does Petmart Online take to deliver after I’ve placed my order?
- Our delivery will take 3 to 5 working days. We will deliver from Monday to Friday from 10am to 10pm.
- Orders that require exchange may take an extra 1-2 days to deliver.
Delivery
- Delivery is free above $100 net spent, Below $100 there will he a $15 delivery fee.
Can I opt for self-collection?
- No!
As our goods come direct from our warehouse, we are not able to allow self pickup. *Do give us a call or WhatsApp 9450 0947 and we will try to help you with you orders.
Drop Off
- Driver only able to leave outside your door steps. Due to Covid and Safety of our staff.