Description
Overview:
The Lever Lock O Ring 3 Inch Rubber Seal is a durable sealing ring for plumbing and hose coupling systems where a reliable, repeatable seal is essential. Moulded from tough black rubber, it sits in the groove of a lever lock coupling, pipe union, or similar fitting to stop liquid, air, and gas escaping. With a 3 inch diameter (approx. 76.2 mm / 7.62 cm), it suits common 3 inch hose and pipe setups used with site pumps, transfer pumps, compressors, and general plumbing equipment. Identified by MPN 777 300, it helps maintain pressure and prevents leaks in both residential and commercial installations. Its resilient material provides a firm, airtight and watertight seal while remaining easy to fit and replace during routine maintenance.
Key Features:
- 3 inch diameter (approx. 76.2 mm / 7.62 cm) for standard 3 inch lever lock couplings and fittings
- Resilient black rubber for long service life under regular coupling and uncoupling
- Forms a tight, dependable seal to help maintain system pressure and reduce leaks
- Suitable for water, air, and non-corrosive gas applications in plumbing and hose assemblies
- Smooth seating surface for quick, clean installation and straightforward replacement
- Consistent moulding for reliable fit and sealing performance across compatible fittings
- Supports residential, commercial, and light industrial use on site or in workshops
- Helps protect pumps, valves, and tools by preventing ingress of air and loss of media
- Low-maintenance component; simple to inspect and replace during routine checks
- MPN 777 300 for easy identification and stock control
Typical Applications:
Sealing 3 inch lever lock hose couplings on site dewatering pumps and water transfer lines, connecting temporary pipework for drainage or irrigation, maintaining airtight joints in compressed air setups, and preventing leaks on tank, valve, and manifold connections in building services, agriculture, and general plumbing tasks.
Also known as:
3 inch O-ring, lever lock seal, hose coupling seal, coupling gasket, pipe joint ring, sealing washer, O-seal, packing ring, rubber gasket for lever lock fittings.
Product Specifications
| L&S Part No. | 777 300 |
|---|---|
| Unit of Sale | 1 |
| Key Features | - 3 inch diameter for standard lever lock couplings - Resilient black rubber for long service life - Forms tight seal to maintain pressure and reduce leaks - Suitable for water, air, and non-corrosive gas - Smooth surface for quick installation and replacement |
