Bullet 2 Protein Skimmer by Precision Marine. **** PRODUCT MANUAL **** The Bullet-2 is the first of all of the Bullet skimmers designed. This skimmer is a workhorse on tanks to 250 gallons. If you have a 100g system now, but are planning to upgrade, this is an excellent choice. Bullet 2 Specifications: - Overall Height: 24” - Base Dimensions: 6.25”x 10” - Inlet Size: 1” Barb - Outlet Size: 1.25” FPT - Ozone Compatible: Yes - Included Port - Capacity: 250gal.