WaterTreats Silica Glass Air Stone are top quality and made from a solid piece of glass bonded silica in the U.S.A.
Uniform fine/medium bubble options are available and allow for dust and dirt particles up to 30 microns to easily travel through which prevents clogging problems and removes the need for extra filters.
WaterTreats Air Stone diffusers have a low air resistance of 0.25 psi and are self weighted.
Silica Glass Airstone Maintenance
Maintenance is minimal with most stones requiring cleaning at a yearly frequency or less. The cleaning and restoring to like-new condition is easily done by a simple acid bath.
With a 2 year manufacturer guarantee, Silica glass air stones are the best option if you are after top quality performance.
Free Shipping Eligibility
What is the eligibility for Free Shipping? As long as your delivery address is in our free shipping zone, and your order is above the minimum value for free shipping, your shipping will be free. For full details see our shipping information here.
Special Order Items - These are items that we do not regularly stock. These items will be ordered specially for you, or dispatched directly to you from our supplier. See the full details here.
Back Order Items - These are items we usually carry in stock but are temporary out of stock. These items will be back in stock within a few days. See the full details here.
This calculator will give you the delivery charges for this product only. Once you place all the items you wish to buy in the cart, the combined shipping price will be shown, including Free Shipping if you are eligible.