These Super high quality rubber weighted air diffuser, are excellent for aeration of ponds.

Supplies pond with a stream of small bubble for that extra needed oxygen.

The Diffusers are manufactured from synthetic rubber which has excellent ozone resistance, solvent resistance, heat resistance, and weather resistance

Rubber Air Diffusers are easily cleaned, and will last much longer than the usual ceramic airstones. These Diffusers are made of rubber therefore much less risk of koi damaging themselves on the product

Sizes Available:

• 30 x 250mm Long Air Diffuser
• 30 x 510mm Long Air Diffuser
• 30 x 760mm Long Air Diffuser
• 30 x 1000mm Long Air Diffuser

Ideal 40 litre air pump to run Size 250mm and 510mm
Ideal 70 litre air pump to run Size 760mm and 1000mm.

These are suited for large bore air pipe 8mm or 3/8 braided airline