High quality Hydrostatic Release Unit stable performance and price Hydrostatic Release UnitHRU-1 , suit for EPIRBKANNAD-406/MO-56 (France)RLB-32/RLB-33 (ACR)TRON 40S/30S ( Jotron)E3 ( MCMURDO/NOVA)952-01 (GUEST/LITTON)HRU-2 , suit for EPIRB SEP-406 (Samyung)HRU-3 releaser ,suit for EPIRBEB-10 (Saracom) High quality Hydrostatic Release Unit