Efficient ESOair Enviro 30 diaphragm blower for domestic wastewater treatment. can be easily used as a replacement compressor for various brands such as AIRMAC DB-30, THOMAS AP-30, THOMAS LP-30HN, HIBLOW HP-30, SECOH JDK-S-30, SECOH EL-S-30, NITTO LA-30, NITTO LA-30E, Alita AL-30, Alita AL-30SA, Hailea HAP-30, Jebao PA-30, Resun LP-30, Yasunaga LP-30A, AquaForte AP-30, Takatsuki HP-30, Medo LA-30, Bibus JDK-30, Enviro ET30, Osaga MK-30, Aqua Medic DC Runner 2.1.