I have NIB Eshops PF Nano Overflow paid $45 for it will sell for $35.
http://www.drsfostersmith.com/produc...43&cagpspn=pla

Model Dimensions Usage Intake Max Flow
PF-Nano 4" x 2.5" x 8.5" H Up to 50 gallons Single 200 gph

Let me know.