104 Mechanical Seal104u Series O Ring, Silicon Water Pump; Seal. Professional Manufacturer: OEM professional mechanical seals manufacturer founded in 2001 with over ten years experience. Wide Shaft Size Range: Full size range from 16mm to 120mm available for the 104U series mechanical seal. High Temperature Resistance: Operates effectively within a temperature range of -20 degrees to 180 degrees. High Speed Capability: Supports high-speed operations up to 3000 R/MIN for demanding applications. ISO9001 Certified Quality: Factory has gained ISO9001 authentication ensuring strict quality control from start to end. Flexible Payment Terms: Accepts T/T, L/C, D/P, Western Union, and Cash for convenient transactions. Custom Mold Development: Offers mold opening services according to specific customer requests and requirements. Global Shipping Options: Provides shipping by sea, air, or courier with detailed package pictures for assurance.