Free shipping on all U.S. orders · Delivery details at checkout
30-day free returns · Full refund on unused items




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We proudly offer free shipping on all orders across the United States. Every item in our store is delivered with no additional shipping cost.
When you place an order, estimated delivery times are provided based on product availability and your location. Shipping details will be shown at checkout so you know exactly when to expect your pet essentials.
Please note that delivery times may vary depending on your region and carrier availability. While all orders ship free, we work with trusted logistics partners to ensure reliable and timely delivery for pet owners across the U.S.
30-day free returns. Return unused items in their original condition and packaging within 30 days of delivery for a full refund.
Return shipping is free. Email petlywox@gmail.com with your order number and we send you a prepaid return label. Damaged, defective or incorrect items are also returned free of charge.
Once your return is received and inspected, your refund is issued to the original payment method within 10 business days. Opened consumables, used grooming or hygiene items, custom products, sale items and gift cards are not returnable unless they arrived damaged, defective or incorrect. See our Refund Policy.
Please note that deliveries to certain remote or outlying areas may experience slight delays during busy periods or due to weather conditions. These delays are temporary and may vary depending on the location and carrier operations. We appreciate your understanding and patience.
Refresh the water your cat drinks with the Biubiucat Cat Water Fountain Filters, a 4-piece set designed for steady, clean flow in Biubiucat dispensers. Each filter uses a quadruple filtration system that targets impurities while preserving essential minerals for a crisp, appealing taste.
Designed for compatibility, the filter diameter is 4.13 inches, making it a seamless match for Biubiucat's pet water dispenser and other compatible fountains. Soaking the filters for ten minutes before first use helps them reach full effectiveness, and weekly cleaning is recommended to maintain performance. Depending on how often your cat drinks or how many pets share the fountain, plan to replace every 2–4 weeks.
Households with one or multiple cats appreciate a constant supply of visually clear water with a fresh feel. The filters are easy to insert and remove, supporting quick cleanups during busy mornings or after playtime. If you notice changes in your fountain's flow or water clarity, a fresh filter is a simple update that can help restore the experience.
Q: What is included in the Biubiucat Cat Water Fountain Filters 4-pack?
A: A 4-piece set containing quadruple filtration media: biochemical cotton, microporous cotton, activated carbon, and ion-exchange resin; each filter is individually packaged.
Q: How often should I replace the filters?
A: Replace every 2–4 weeks depending on your pet's drinking frequency and the fountain usage; soak 10 minutes before first use and rinse weekly.
Full details: Shipping Policy · Refund Policy. Questions? Email petlywox@gmail.com.
Check the exact measurements and package contents before ordering. Read U.S. delivery details and return conditions. For a product question, email petlywox@gmail.com.
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