Python Pro-Clean Gravel Washer & Siphon Kit with Squeeze Size:Large (2" Tube x 6 ft Hose) start measuring the specific gravity

start measuring the specific gravity with a refractometer or similar instrument

• Compact design with pivoting cartridge heads is perfect for small spaces

6 gals• Total Volume: 738 L/195

The Body of the Skimmer

1gal• Glass Thickness: 10mm• Includes: Aquarium Filter Sock

Python Pro-Clean Gravel Washer & Siphon Kit with Squeeze Size:Large (2" Tube x 6 ft Hose) start measuring the specific gravityPython airline tubing is non toxic and ozone safe. The pale blue color makes it virtually invisible in your aquarium. It will stay flexible and never crack or turn yellow. 3 16in inside diameter. Fits all standard pumps and accessories.