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Airmax® Diffuser Plates and Diffuser Sticks for KoiAir™ Aeration SystemsAirmax® Diffuser Plates and Diffuser Sticks for KoiAir™ Aeration SystemsEach KoiAir™ diffuser plate utilizes a sturdy base plate and 1-piece weighted distribution block. The distribution block incorporates a 3/8" barbed inlet for quick hook-up to Airmax® EasySet™ airline (or any other 3/8" airline) while providing threaded female outlets to accommodate 2 membrane diffuser sticks. Airmax® diffuser membranes deliver all of the performance of air stone diffusers without the hassles of replacing cracked stones or frequent cleanings due to debris accumulations. Virtually maintenance-free, membrane diffuser sticks resist clogging and their flexibility eliminates the possibilities of cracking and leaking. 
Airmax® PondAir™ Air StonesAirmax® PondAir™ Air StonesDesigned 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 PartsThe ProAir™-2 Weighted Diffuser is for use with the Airmax® Shallow Water Series™ Aeration Systems. Featuring an innovative sled design and check valve. Parts and accessories available.
Airmax® ProAir™-4 Diffuser Plates & Replacement PartsAirmax® ProAir™-4 Diffuser Plates & Replacement PartsThe ProAir™-4 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. 
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 StonesALITA® Sintered Air Diffuser StonesThe ALITA® Sintered Air Diffuser Stones are durable reusable, ozone-resistant air diffusers suitable for aquariums, koi ponds, fish hatcheries and aquaculture applications. 
Anjon Air Diffuser DiscsAnjon Air Diffuser DiscsAnjon 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. 
Aquascape® Rubber Membrane Aeration Diffuser, 10"Aquascape® Rubber Membrane Aeration Diffuser, 10"Aquascape® 10" Rubber Membrane Aeration Diffusers are ideal for aeration systems in ponds and water features. The self-cleaning EPDM rubber membrane expands to release debris for clog-resistant operation and maximum dissolved oxygen output.
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 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 24" Tubular DiffuserEasyPro 24" Tubular Diffuser
This EasyPro tubular membrane diffuser is 24" long and 2.5" in diameter, with 8400 bubble-producing slots. The open-ended design allows diffuser to be self-weighted.
    EasyPro Air Diffuser ManifoldsEasyPro Air Diffuser ManifoldsEasyPro air diffusers include check valve to prevent water from filling air line when not in use and underlay. All manifolds are comprised of 6" long rubber membrane air diffusers and a polyethylene underlay to keep diffusers from settling into the mud and to prevent sediment erosion during operation.
    EasyPro Large Membrane Diffuser AssembliesEasyPro Large Membrane Diffuser AssembliesThese membrane air diffuser assemblies can be used with EasyPro lake and large pond aeration systems. These assemblies feature a hollow base that can be filled with sand or gravel, eliminating the need for bricks and straps to get the diffuser to sink.
      EasyPro Membrane DiffusersEasyPro Membrane Diffusers
      These EasyPro Membrane Diffusers are a great alternative to air stones in many aeration applications. Hundreds of "I" shaped slots open as air pressure builds inside of the diffuser. The center of the membrane does not have slots and acts as a check valve when air flow stops.
        EasyPro Pro-Glass Alumina Air StonesEasyPro Pro-Glass Alumina Air Stones
        EasyPro Pro-Glass Alumina Air Stores produce finer bubbles and are 3 times stronger than white silica air stones! These airstones produce finer bubbles for increased aeration efficiency with no increase in pressure. Inlet fittings are set into the body of the diffuser, making them much less likely to break or twist loose.
          EasyPro Rubber Membrane Air DiffusersEasyPro Rubber Membrane Air DiffusersThese EPDM rubber membrane air diffusers are incredibly strong and ideal for pond aeration, circulation, and destratisfying applications. They are an excellent choice for pond and water garden aeration, since they actually produce more circulation and water movement than airstones.
            EnhanceAir™ Junior Diffuser Discs, Tubing & Fittings from Complete AquaticsEnhanceAir™ Junior Diffuser Discs, 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.
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