225-Piece Nitrile Rubber O-Ring Assortment & Gasket Seal Kit

225-Piece Nitrile Rubber O-Ring Assortment Set – Multi-Size Sealing Gasket Kit

Keep every connection tight and leak-free with this comprehensive 225-piece nitrile rubber O-ring assortment. Whether you're tackling a dripping faucet, servicing an automotive hose, or maintaining a hydraulic system, this all-in-one kit delivers the right-sized seal every time.

Why Choose This O-Ring Kit?

• 225-Piece Multi-Size Assortment – Covers a wide range of diameters and cross-sections to meet common sealing demands, from compact faucet fittings to larger automotive and hydraulic connections.
• Premium Nitrile Rubber (NBR) Material – Oil-resistant, water-resistant, and heat-tolerant construction delivers dependable flexibility and long-lasting performance in both indoor and outdoor environments.
• Reliable Airtight & Watertight Seals – Precision-formed rings create secure, leak-proof connections for plumbing, automotive hoses, hydraulic systems, pneumatic equipment, air conditioning lines, gas fittings, and general household repairs.
• Organized Compartmentalized Storage Case – Every size is sorted and clearly visible in a durable, clear plastic box, so you find the exact ring you need in seconds — no loose parts, no guesswork.
• Versatile Application – Ideal for DIY enthusiasts, plumbers, mechanics, HVAC technicians, and homeowners managing routine maintenance or emergency repairs.

Product Specifications

• Quantity: 225 pieces
• Material: Nitrile Rubber (NBR)
• Shape: Ring Gasket (O-Ring)
• Sizes: Multiple sizes included
• Storage: Clear compartmentalized plastic case
• Model: 225200
• Made in Mainland China

Common Uses

• Plumbing pipe and faucet sealing
• Automotive hose and fuel system connections
• Hydraulic and pneumatic system maintenance
• Air conditioning and refrigeration fittings
• Gas line connections and appliance repair
• General DIY and household maintenance projects

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Frequently Asked Questions

Q: What material are these O-rings made from, and why does it matter?

A: These O-rings are made from Nitrile Rubber (NBR), a synthetic rubber compound known for its excellent resistance to oils, fuels, water, and moderate heat. This makes them well-suited for automotive, plumbing, hydraulic, and pneumatic applications where exposure to fluids and varying temperatures is common.

Q: How many sizes are included in the 225-piece O-ring assortment set?

A: The kit contains 225 nitrile rubber O-rings spanning multiple diameters and cross-sections, covering the most commonly needed sizes for plumbing repairs, faucet maintenance, automotive hoses, hydraulic systems, and general DIY projects. All sizes are organized in a clear, compartmentalized storage case for quick identification.

Q: Are these O-rings suitable for outdoor and high-pressure applications?

A: Yes. The nitrile rubber (NBR) construction offers strong resistance to oils, water, and heat, making these O-rings reliable for both indoor and outdoor use, including automotive and hydraulic systems that operate under elevated pressures. Always confirm the specific pressure and temperature ratings match your application requirements.

Q: Is a storage case included with the O-ring kit?

A: Absolutely. Every set comes with a clear, compartmentalized plastic storage box that keeps all 225 O-rings sorted by size, protected from dust, and easy to access whenever you need a quick repair or replacement.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.