Fluval 104 / 204 / 304 / 404 Retaining Rings

We want you to be happy with your purchase! If you are not completely satisfied with an item, simply return it in its original, unused condition within 30 days of receipt along with a copy of the original invoice or return form (if applicable) and it will be refunded, replaced, or exchanged for you. For complete details for returning items such as Saddles, Horse Blankets, Bits, Undergarments and Supplements and for complete return instructions, you can read more here by clicking here.