Air Diffusers
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Air Stones for Airmax® PondAir™ Aeration Systems - 2" Round, 6" Bar, or 12" BarAir Stones for Airmax® PondAir™ Aeration Systems - 2" Round, 6" Bar, or 12" BarDesigned to improve oxygen absorption, Airmax® PondAir™ Air Stones create ultra-fine air bubbles that infuse oxygen directly into the water column.
Airmax® ProAir™-2 Diffuser Plates & Replacement PartsAirmax® ProAir™-2 Diffuser Plates & Replacement PartsThis replacement ProAir™-2 Weighted Diffuser is for use with the Airmax® Shallow Water Series™ Aeration Systems. The innovative sled design keeps the diffuser submerged while maintaining an upright position. The included check valve prevents back pressure on the compressor. Winterization Caps are recommended if you shut down your aeration system during the winter, as they prevent debris from entering the airline.
Airmax® ProAir™-4 Diffuser Plates & Replacement PartsAirmax® ProAir™-4 Diffuser Plates & Replacement PartsThis replacement ProAir™-4 Weighted Diffuser is for use with the Airmax® Pond Series™ and Lake Series™ Aeration Systems. The innovative sled design keeps the diffuser submerged while maintaining an upright position. The included check valve prevents back pressure on the compressor. Winterization Caps are recommended if you shut down your aeration system during the winter, as they prevent debris from entering the airline.
ALITA® EPDM Flexible Membrane Diffuser DiscsALITA® EPDM Flexible Membrane Diffuser DiscsThe ALITA® EPDM Flexible Membrane Diffuser Discs are fine pore diffusers engineered for superior product life, operational flexibility and maximum oxygen transfer efficiency. These units are ideally suited for continuous or on/off applications and require minimal maintenance for long-term efficient performance.
ALITA® Silicone Membrane Diffuser TubesALITA® Silicone Membrane Diffuser TubesThe ALITA® Silicone Membrane Diffuser Tubes are an extremely effective air diffusing media. With a diameter of 28mm (approximately 1.1 inch), these tubes accept a connection of 1/2" FPT.
ALITA® Sintered Air Diffuser Stones - Spheres, Discs, and CylindersALITA® Sintered Air Diffuser Stones - Spheres, Discs, and CylindersThe ALITA® Sintered Air Diffuser Stones are extremely durable air diffusing media, both washable and reusable. They are suitable for aquariums, koi ponds, fish hatcheries and aquaculture applications. Manufactured with brown Adamantine Spar (corundum/alumina) under ultra high temperature and pressure, these airstones are Ozone resistant and applicable in acidic (low pH) or alkaline (high pH) waters.
Anjon Disc Air Diffuser / Airstones - 5" and 8" SizesAnjon Disc Air Diffuser / Airstones - 5" and 8" SizesAnjon disc-shaped airstones are specifically meant for 3/8" weighted airline tubing, These airstone pairs very well with the Anjon 3/8" weighted airline and LifeLine Air Pumps™. The 5" airstone pairs best with smaller systems, while 8" airstones pair best with LL-45 or larger pumps.
Aquascape® Pond Aeration Replacement PartsAquascape® Pond Aeration Replacement PartsThese replacement parts bring the Aquascape® Pond Aeration Kits back to peak performance! The Aquascape® Pond Aeration Kits for Small Ponds will effectively oxygenate your pond, helping all biological processes and creating a more stable environment, resulting in healthier fish and plants. 
Atlantic Water Gardens Typhoon Deep Water DiffuserAtlantic Water Gardens Typhoon Deep Water DiffuserThis innovative diffuser maximizes circulation and oxygen transfer with an extruded EPDM tube for tremendous longevity. Bubble sizes that decrease as pressure rises maximize surface area for extremely efficient gas diffusion. Aeration diffusers accommodate nearly every depth and profile. Diffusers can be filled with gravel or sand to keep weighted to the bottom of the pond.
Atlantic Water Gardens Typhoon Diffuser Kits - Up to 12,000 Gallon PondsAtlantic Water Gardens Typhoon Diffuser Kits - Up to 12,000 Gallon Ponds

Atlantic Water Gardens Typhoon Diffuser Kits extend the reach of the Typhoon Air Pumps with greater aeration capabilities and larger pond capacity. This kit includes the necessary diffuser, tubing and in-line check valve -- everything needed for the system except for the pump!

Atlantic Water Gardens Typhoon Shallow Water DiffuserAtlantic Water Gardens Typhoon Shallow Water DiffuserThis innovative diffuser maximizes circulation and oxygen transfer with an extruded EPDM tube for tremendous longevity. Bubble sizes that decrease as pressure rises maximize surface area for extremely efficient gas diffusion. Aeration diffusers accommodate nearly every depth and profile. Diffusers can be filled with gravel or sand to keep weighted to the bottom of the pond.
biOrb® AirstonebiOrb® Airstone

The air stone fits in the base of the biOrb® underneath the filter cartridge. It breaks up the flow of air into the aquarium, splitting it into a mass of fine bubble. It also reduces noise from the air pump. 

EasyPro Air Diffuser ManifoldsEasyPro Air Diffuser ManifoldsIncludes check valve to prevent water from filling air line when not in use. Polyethylene underlay keep diffusers from settling into the mud and prevents sediment erosion during operation. 
EasyPro Membrane Diffuser AssembliesEasyPro Membrane Diffuser AssembliesRedesigned base allows for strain relief clamp to secure tubing onto base. Built in check valve prevents backflow of water up air line.
EasyPro Pro-Glass Alumina Air StonesEasyPro Pro-Glass Alumina Air Stones"Alumina" air stones - three times stronger than white silica air stones! Produces a finer bubble with no increase in pressure.
EasyPro Replacement Membrane DiffuserEasyPro Replacement Membrane DiffuserA great alternative to air stones in many aeration applications. Hundreds of "I" slots that open as air pressure builds inside of the diffuser.
EasyPro Rubber Membrane Air DiffusersEasyPro Rubber Membrane Air DiffusersThese EPDM air diffusers are incredibly strong and ideal for pond aeration, circulation, and destratisfying applications. Unlike air stones, these diffusers are easy to clean
EasyPro Tubular DiffuserEasyPro Tubular DiffuserTubular membrane diffusers are 24" long, 21/2" in diameter and have 8400 bubble producing slots.
EnhanceAir™ Junior Diffuser Disks, Tubing & Fittings from Complete AquaticsEnhanceAir™ Junior Diffuser Disks, Tubing & Fittings from Complete Aquatics
The EnhanceAir™ Junior Diffuser Disk & Diffuser Fittings are for use with the EnhanceAir™ Junior Air Pumps and Aeration Systems. The 4.5" diameter disk is protected from rocks and gravel by its base.
EnhanceAir™ PRO Diffuser Ring by Complete AquaticsEnhanceAir™ PRO Diffuser Ring by Complete Aquatics
The EnhanceAir™ PRO Diffuser Ring has a unique 360o ring shape that improves water circulation and a raised design that provides maximum efficiency. This self-weighted diffuser includes a back-flow check valve and attaches to EnhanceAir™ PRO Self-Weighted Air Line or other 3/8" self-weighted air line.

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