GROW1 Black Vinyl Tubing I.D. 1/2in x 50ft Scissors non-electric chemical injectors are the

non-electric chemical injectors are the easiest

CenturionPro Original and CenturionPro Gladiator

* Quick and easy maintenance with simple filter

2ft Spacing

GROW1 Black Vinyl Tubing I.D. 1/2in x 50ft Scissors non-electric chemical injectors are theBlack Vinyl Tubing (ID) 1 2" (OD) 5 8" 50 ft Made from strong and durable vinyl material, these tubes are available in a variety of sizes and lengths, great for use with air or water. The tube walls are thick and flexible, and you may choose between the 100% opaque black vinyl, which prevents algae growth, or the clear vinyl that allow for complete visibility. Inner Dimensions: 1 2'' Outer Dimensions: 5 8''