Perfect fit - 6 inch net pot lid is fits good on standard 3.5 and 5 gallon buckets. Also fit for 5 gallon Lowe's bucket and home depot buckets. The diameter wide Lip is 12". Mesh net pot - 6”wide x 4. 5”deep is great for Orchid pot, Hydroponics and dwc Hydroponics. Great for hydro growrh - Net pot lid will grow the best plants in a hydroponic system, such as tomatoes, lettuce, spinach, strawberries, bell peppers, herbs etc. Keep Out Algae - This DWC bucket lid is black plastic keeps light and algae out. Durable, sturdy and easy to clean - The high quality net pots will last for a long time. Tectsia 6 Inch Net Pots for 5 Gallon Bucket Wide Lids (5 Pack), Net Cups for Hydroponics Bucket Lids, BPA-Free, DWC Basket Lids for 5 and 3.5 Gallon Bucket