Ultum Nature Systems (UNS) 45L Long 3.8 Gallon Lid Lid Style:ReeFlex Fused Air Fitment: Fits the Reefer S-550

Fitment: Fits the Reefer S-550 G2

Built for the Aqua Japan Nano 5 4

then choose your tank's length and width

Built for the Ultum Nature Systems (UNS) 180U Standard 156 Gallon

Built for the Aqua Japan PRO 85-W

Ultum Nature Systems (UNS) 45L Long 3.8 Gallon Lid Lid Style:ReeFlex Fused Air Fitment: Fits the Reefer S-550Built for the Ultum Nature Systems (UNS) 45L Long 3. 8 Gallon, this lid is cut from 3 8" optically clear polycarbonate and screened with 1 4" clear mesh to keep your livestock where they belong without cutting into your light. If you prefer black mesh or 1 8" clear mesh, you can select that when you configure your lid. Every ClearView lid is proudly Made in the USA. Made to order, built to last. Choose your lid style above, then click Customize My Lid