The Blue Diamond Diaphragm & Magnet Bar Kit for ETD200 set is for the ETD200 Air Pump and not the ET200. Blue Diamond Diaphragm & Magnet Bar Kit will bring your air pump back to its full running capacity. These rebuild kits and air filtration systems are tailor-made for use with Blue Diamond air pumps, spanning the entire range from the ET Series to the ETPA Series. Much like all diaphragm air pumps, it's recommended for Blue Diamond air pumps to replace the diaphragms every 12-18 months for optimal performance.
The refurbishment kits come packed with 2 Diaphragms, and 1 Magnet Bar, will restore the pumps to their peak performance. Individual air filters are available separately.