Oxygen Shield Air Diffusers
728510 OXYGEN SHIELD 1 (10-30 GAL) $28.99
728511 OXYGEN SHIELD 2 (20-40 GAL) $38.99
728512 OXYGEN SHIELD 3 (40-70 GAL) $49.99
728513 OXYGEN SHIELD 5 (5 GAL BUCKET) $16.99

.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.
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