DEEP WATER INOVATIONS Deep Water Oxygen Shield 1 Air Diffuser(FREE SHIPPING)

THIS IS NEW / UNOPENED BOX - I DONT KNOW IF THEY STILL MAKE THESE BUT THIS HAS BEEN SITTING AT STORE FOR YEARS, TUBING SIZE IS MOST LIKELY BIGGER THAN NORMAL AIRLINE, IT IS ON CLEARANCE, ALL SALES ARE FINAL NO RETURNS!

Oxygen Shields are made out a recycled rubber polymer and are designed for years of operation with minimal maintenance. Each Oxygen Shield diffuses air at around 3000 microns or 3 millimeters in diameter. Oxygen Shields come in 5 different sizes and fit up to 70 gallon tanks. The beauty of these manifolds is the low diffusion rate needed to fill the Shield. OS1 is for 10-30 gallon tanks. OS2 is for 20-40 gallon tanks. OS3 is for 40-70 gallon tanks. OS5 is for 5 gallon bucKET