Self-Weighted Disc with Base Information (MD-3W, MD-5W, and MD-7W):
These offer a low back pressure that helps to preserve the lifespan and performance of your air pump.
| Model | Description | Flow Rates | Connection | Weight | Pond Size |
| MD-3W | 3-Inch Diameter. Self-weighted, silicone rubber disc diffuser, soft and easy to clean. | 3 lpm to 5 lpm / 0.1 cfm to 0.2 cfm | 3/16" connector barb | .4 lbs | Small ponds and aquariums |
| MD-5W |
5-Inch Diameter. EPDM rubber disc diffuser, easy to clean. |
8 lpm to 35 lpm / 0.3 cfm to 1.2 cfm | 3/8" connector barb | 1.75 pounds | Small ponds    |
| MD-7W |
7-Inch Diameter. EPDM rubber disc diffuser, easy to clean. |
15 lpm to 65 lpm / 0.5 cfm to 2.3 cfm | 3/8" connector barb | 3.3 pounds | Small ponds    |
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Recommended for the Matala® Disc Diffusers with Self-Weighted Base
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$19.99 | $24.99
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