Hakko/Matala HK-M40 Magnet Set -replacement part for air pump-holds diaphragm

​​HK-M40 Magnet Set (1pc)Replacement Magnet for Hakko & Matala aeration pumps.Commonly overlooked during diaphragm replacement.The magnet helps to hold the diaphragm secure.Easy to install.An oxygenating air pump will commonly have a magnet set that moves back and forth with the diaphragm. These two parts work in tandem to secure each other. In most scenarios the magnet outlives the diaphragm by quite a wide margin. However, running an air pump with a failing diaphragm for an extended period of time can wear the magnet down. If you open the motor of your Hakko Air pump for repair and find dust or small metal particles you most likely need to replace the magnet. Always inspect the magnet for wear and tear when you replace the air pump diaphragm.--------------------------------------------------------------------------------------- Who Is Pond & Garden Depot?Pond & Garden Depot is the internet division of Green Vista Water Gardens. We are one of the leading pond specialists in the Midwest with 4 acres devoted just to ponds and water features. We have been in business since 1997 and specialize in everything for the home pond and garden. Our store features a selection of products for the pond & garden that we can offer at a great value. Check back often for new specials and listings!Why Buy From Pond & Garden Depot?We're specialists in what we sell. Our staff includes graduates from Ohio State (B.S. Horticulture) & Purdue University (M. S. Horticulture), plus we have over 60 years of combined hands-on experience in ponds & water gardens.We've maintained over 15 different display ponds and water features on our business grounds ranging from small bubbling fountains to 10,000 gallon ponds with complete assortments of plants & fish.We have hands-on experience with many of the products we sell.Buy with confidence: We guarantee everything we sell and have been selling on Ebay and the internet since 1998.All of our products represent a great value. We are here for the long run and stand by our products.Thanks for visiting us today! -The Pond and Garden DepotQuestions? Use the "Contact Seller" link above! Meet Our Staff! img figure figcaption header, footer nav article ul li