Single mechanical seal (stuffing gland) with rubber bellows and arbitrary direction of rotation. Seals with reduced installation length are widely used in serial production of water pumps, household pumps for home and garden, washing machines, submersible and vortex pumps. Can be used in pumps AL-KO, Calpeda (MXP, MGP, NGL), Kripsol, Pedrolo (JCR, PRO-NGA 1A) article 11516101203, Grundfos JP Basic 4 PT, PACKO, and others. Analogue of mechanical seals: Burgmann BT-AR, AESSEAL B01, Vulcan 18, Anga C10, Hermetic M212.NC. Mechanical seal for pump Wilo, K, KM, X, AH, AHP, AH, Calpeda, DAB, Ebara, Grundfos, for pump KSB, Allweiler, SALMSON, ACD Cryo, Flygt, IMP Pumps, LOWARA, PENTAX, Foras, Fristam, for pump SPERONI, ZENIT, Inoxpa, JL, Johnson pump, KOLMEKS, Pedrollo, SAER, Vulcan, WQ, WQK, for pumps Tuchenhagen, ALFA LAVAL, Donjoy, Mission Magnum