Flipper Standard Replacement Glass Scraper Blades 2 pack nitrate when used in this fashion

when used in this fashion

FlorinAxis benefits plants in a number of very important and interrelated means: it provides a stable source of carbon (derived from naturally-occurring compounds rather than from preservatives) for direct uptake by plants

a protective cover for the UV switch and a quick disconnect valve which is color coded

Blade Width - 3 7/8"

Flipper Standard Replacement Glass Scraper Blades 2 pack nitrate when used in this fashionFlipper Standard Stainless Steel Replacement Blades (Two Pack) Each package contains two standard stainless steel replacement scraper blades. Blade replacement is recommended every 3 6 months to maintain optimum cleaning power. Stainless steel blades are for glass aquariums only. For Use With Flipper Standard (Large) Unit