Pawfly 16-Inch Air Stone Diffuser Cylinders, 2 Pack, 36 L/min for Large Aquariums

Pawfly 16-inch air stone cylinders are rubber bubble diffusers for aerating larger aquariums, ponds, gardens, aquaculture systems, and DWC reservoirs, with a 36 L/min jetting volume and two units per pack.

• Two 16-inch cylinders — add aeration across larger water systems.
• Rubber construction produces abundant, dense, even bubbles — help aerate water reservoirs.
• 36 L/min jetting volume — supplies bubbles for larger setups.
• Two square end holders and 13.8 oz weight — help keep each cylinder settled while bubbling.
• Fits 3/16-inch or 3/8-inch ID airline tubing — works with either listed tubing size.

For larger setups, distributing bubbles through the water can be part of maintaining aeration for fish or plant roots. These Pawfly diffusers are sized for large aquariums, ponds, gardens, aquaculture farms, and deep water culture (DWC) reservoirs. Their elongated cylinder shape provides a broad bubbling area, while the paired units give you two diffusers for your system.

What systems are these Pawfly air stone cylinders made for?

They are made for larger water systems, including large aquariums, ponds, gardens, aquaculture farms, and DWC reservoirs. Each cylinder measures 1.2 in (3.05 cm) in diameter x 16 in (40.64 cm) long, so its elongated shape is intended for larger spaces rather than compact tanks. The cylinders are not suitable for small aquariums or fish tanks.

• Pack quantity: 2 air stone cylinders.
• Model: ASE-302.

What pump and airline tubing do they use?

Use an air pump rated above 7 W and standard airline tubing with a 3/16 in (4.76 mm) or 3/8 in (9.53 mm) inner diameter. The jetting volume is 36 L/min, and the rubber material produces dense, even bubbles as air passes through the diffuser. Match your pump and tubing to these specifications when setting up the system.

• Recommended air pump power: > 7 W.
• Airline tubing sizes refer to inner diameter (ID).

How do you prepare and clean the Pawfly diffusers?

Soak each cylinder completely in water for more than 3 hours before use. Two square holders, one at each end, add stability so the diffuser stays in place more easily as it bubbles. After use, wipe dirt from the surface rather than brushing it.

• Weight: 13.8 oz (391 g).
• Cleaning method: wipe the surface; do not brush it.

These Pawfly air stone cylinders suit owners and growers aerating a larger aquarium, pond, garden water system, aquaculture setup, or DWC reservoir who can use the recommended pump power and tubing sizes. They are designed for larger systems, not small aquariums or fish tanks, and their long cylinder shape, end holders, and specified setup requirements define their fit.

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