Yes, there is, but first, try replacing the air stone or cleaning it. Also, try replacing the tubing. Over time both can become clogged or stiff, and restrictive, which increases the noise level of the air pump.
Here is a link to the kit: http://www.tetra-fish.com/products/parts/repair-kit-tetratec-dw-962-ap300.aspx. We also sell it through local fish stores and Amazon.
Date published: 2018-11-27