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Black Fitting 1/2" FPT x 3/8" Barb Black Fitting 1/2" FPT x 3/8" Barb

Use this Black Plastic 1/2" FPT x 3/8" Barb to connect RAD850 & RAD1250 diffusers or AS650, AS950 & AS1250 Air Stones to 3/8" Airline.

Our Price: $2.00
Black Fitting 1/2" FPT x 1/2" Barb Black Fitting 1/2" FPT x 1/2" Barb

Use this Black Plastic 1/2" FPT x 1/2" Barb to connect RAD850 & RAD1250 diffusers or AS650, AS950 & AS1250 Air Stones to 1/2" Airline.

Our Price: $2.00
1-1/2" Air Stone w/ 3/16" Barb

This high quality, fine bubble diffuser is constructed of an Alumina product, which is 3 times stronger than glass-bonded silca air stones.  It has a 3/16" Barb adapter and a recommended airflow of 0.20 CFM.

Our Price: $9.00
3" Air Stone w/ 3/8" Barb

This high quality, fine bubble diffuser is constructed of an Alumina product, which is 3 times stronger than glass-bonded silca air stones.  It has a 3/8" Barb adapter and a recommended airflow of 0.30 CFM.

Our Price: $14.00
8" Rubber Membrane Air Diffuser w/ 1/2" MPT

These EPDM rubber air diffusers are incredibly strong and very easy to clean.

List Price: $17.49
Our Price: $15.00
Savings: $2.49
6" Air Stone w/ 1/2" MNPT

This high quality, fine bubble diffuser is constructed of an Alumina product, which is 3 times stronger than glass-bonded silca air stones.  It has a 1/2" male pipe thread connection and a recommended airflow of 0.50 CFM.

Our Price: $17.00
Check Valve with 3/8" Adapter for MixAir Diffusers

We use this check valve assembly for attaching the WBB4 Waterbug Air Diffuser to 3/8 airline.

Our Price: $19.00
Check Valve with 5/8" Adapter for MixAir Diffusers

We use this check valve assembly for attaching the WBB4 Waterbug Air Diffuser to 5/8 airline.

Our Price: $19.00
Check Valve with 1/2" Adapter for MixAir Diffusers

We use this check valve assembly for attaching the WBB4 Waterbug Air Diffuser to 1/2 airline.

Our Price: $19.00
12" Rubber Membrane Air Diffuser w/ 1/2" MPT

These EPDM rubber air diffusers are incredibly strong and very easy to clean.

List Price: $25.69
Our Price: $22.00
Savings: $3.69
9" Air Stone w/ 1/2" MNPT

This high quality, fine bubble diffuser is constructed of an Alumina product, which is 3 times stronger than glass-bonded silca air stones.  It has a 1/2" male pipe thread connection and a recommended airflow of 0.75 CFM.

Our Price: $31.00
12" Air Stone w/ 1/2" MNPT

This high quality, fine bubble diffuser is constructed of an Alumina product, which is 3 times stronger than glass-bonded silca air stones.  It has a 1/2" male pipe thread connection and a recommended airflow of 1.0 CFM.

Our Price: $34.00
Membrane Diffuser

This is a replacement diffuser for the EPMD1 and EPMD2 Diffuser Assemblies.  It can also be used on its own for a low cost air diffuser.  It gives off a uniform bubble pattern at flow rates up to 3 CFM of air.

List Price: $44.19
Our Price: $40.00
Savings: $4.19
Preweighted Koi Pond Diffuser

This diffuser features a unique micro-porous membrane that keeps fine bubbles from coalescing into bigger bubbles.  This feature greatly increases the amount of water that these diffusers can move, which means much better aeration

Our Price: $69.00
Sale Price: $44.00
Savings: $25.00
WaterBug B4 Diffuser

This diffuser features a unique micro-porous membrane that keeps fine bubbles from coalescing into bigger bubbles.  This feature greatly increases the amount of water that these diffusers can move, which means much better aeration

Our Price: $69.00
Single Membrane Diffuser Assembly

Now available with 1, 2 or 4 heads, these membrane air diffuser
assemblies feature a hollow base that can be filled with sand or gravel,
which eliminates the need for bricks and straps to get the diffuser to
sink!

List Price: $122.00
Our Price: $106.00
Savings: $16.00
Rubber Membrane Manifold

This 4 diffuser manifold is a good option for shallow water ponds without a significant amount of muck.

List Price: $128.59
Our Price: $116.00
Savings: $12.59
Double Membrane Diffuser Assembly

Now available with 1, 2 or 4 heads, these membrane air diffuser
assemblies feature a hollow base that can be filled with sand or gravel,
which eliminates the need for bricks and straps to get the diffuser to
sink!

List Price: $166.00
Our Price: $144.00
Savings: $22.00
Quad Membrane Diffuser Assembly

Now available with 1, 2 or 4 heads, these membrane air diffuser
assemblies feature a hollow base that can be filled with sand or gravel,
which eliminates the need for bricks and straps to get the diffuser to
sink!

List Price: $249.79
Our Price: $225.00
Savings: $24.79