{"product_id":"990-piece-nitrile-rubber-o-ring-kit-ac-high-pressure","title":"990-Piece Nitrile Rubber O-Ring Kit – AC \u0026 High-Pressure Seals","description":"\u003ch2\u003e990-Piece Nitrile Rubber O-Ring Assortment Kit\u003c\/h2\u003e\n\u003cp\u003eKeep your air conditioning systems, hydraulic lines, and high-pressure fittings leak-free with this comprehensive \u003cstrong\u003e990-piece nitrile rubber O-ring kit\u003c\/strong\u003e. Spanning 20 different sizes in a single organized box, this assortment is the ultimate go-to for HVAC technicians, auto mechanics, plumbers, and serious DIYers who need the right seal on hand — every time.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Choose This O-Ring Kit?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e990 pieces across 20 sizes\u003c\/strong\u003e — a size for virtually every common fitting and port\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNitrile rubber (NBR) material\u003c\/strong\u003e — excellent resistance to oils, fuels, refrigerants, and high-pressure environments\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable \u0026amp; wear-resistant\u003c\/strong\u003e — maintains shape and elasticity under repeated use\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact storage box\u003c\/strong\u003e — neatly organized so you can find the size you need instantly\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIdeal for air conditioning maintenance\u003c\/strong\u003e — compatible with AC lines, compressors, valves, and fittings\u003c\/li\u003e\n  \u003cli\u003eAlso great for automotive, plumbing, appliance repair, and industrial applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eComplete Size Breakdown (990 pcs total)\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"6\" cellspacing=\"0\" style=\"border-collapse:collapse; width:100%; max-width:480px;\"\u003e\n  \u003cthead\u003e\n    \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003cth\u003eQuantity\u003c\/th\u003e\n\u003cth\u003eSize (ID × CS mm)\u003c\/th\u003e\n\u003cth\u003eQuantity\u003c\/th\u003e\n\u003cth\u003eSize (ID × CS mm)\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e120 pcs\u003c\/td\u003e\n\u003ctd\u003e1 × 2 mm\u003c\/td\u003e\n\u003ctd\u003e120 pcs\u003c\/td\u003e\n\u003ctd\u003e2.5 × 1 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e100 pcs\u003c\/td\u003e\n\u003ctd\u003e3 × 1 mm\u003c\/td\u003e\n\u003ctd\u003e100 pcs\u003c\/td\u003e\n\u003ctd\u003e4 × 1 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e80 pcs\u003c\/td\u003e\n\u003ctd\u003e4.5 × 1 mm\u003c\/td\u003e\n\u003ctd\u003e80 pcs\u003c\/td\u003e\n\u003ctd\u003e5 × 2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e80 pcs\u003c\/td\u003e\n\u003ctd\u003e6 × 2 mm\u003c\/td\u003e\n\u003ctd\u003e80 pcs\u003c\/td\u003e\n\u003ctd\u003e7 × 2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e60 pcs\u003c\/td\u003e\n\u003ctd\u003e8 × 2 mm\u003c\/td\u003e\n\u003ctd\u003e40 pcs\u003c\/td\u003e\n\u003ctd\u003e9 × 2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e30 pcs\u003c\/td\u003e\n\u003ctd\u003e10 × 2 mm\u003c\/td\u003e\n\u003ctd\u003e12 pcs\u003c\/td\u003e\n\u003ctd\u003e12 × 3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e12 pcs\u003c\/td\u003e\n\u003ctd\u003e13 × 3 mm\u003c\/td\u003e\n\u003ctd\u003e12 pcs\u003c\/td\u003e\n\u003ctd\u003e14 × 2.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e12 pcs\u003c\/td\u003e\n\u003ctd\u003e16 × 2 mm\u003c\/td\u003e\n\u003ctd\u003e10 pcs\u003c\/td\u003e\n\u003ctd\u003e17 × 2.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e12 pcs\u003c\/td\u003e\n\u003ctd\u003e18 × 2 mm\u003c\/td\u003e\n\u003ctd\u003e10 pcs\u003c\/td\u003e\n\u003ctd\u003e20 × 2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e10 pcs\u003c\/td\u003e\n\u003ctd\u003e22 × 2 mm\u003c\/td\u003e\n\u003ctd\u003e10 pcs\u003c\/td\u003e\n\u003ctd\u003e25 × 2.4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTotal Pieces:\u003c\/strong\u003e 990\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Nitrile Rubber (NBR)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBox Dimensions:\u003c\/strong\u003e 19 × 13.2 × 2.3 cm (7.48 × 5.20 × 0.91 in)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Made in China\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Includes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Organized storage box containing all 990 O-rings across 20 sizes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eNote: Slight color variation may occur between screens. Manual measurement tolerance of ±1–3 mm applies.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cp\u003eFor best practices on working safely with HVAC and high-pressure systems, refer to guidelines from OSHA's workplace safety resources.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What material are these O-rings made from, and why does it matter?\u003c\/h4\u003e\n\u003cp\u003eA: These O-rings are made from nitrile rubber (NBR), a synthetic elastomer known for its excellent resistance to oils, refrigerants, hydraulic fluids, and high-pressure environments. This makes the nitrile rubber O-ring kit especially well-suited for air conditioning systems and automotive applications where chemical exposure is common.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How many sizes are included in the 990-piece O-ring kit?\u003c\/h4\u003e\n\u003cp\u003eA: The kit includes 20 distinct sizes ranging from 1×2 mm up to 25×2.4 mm, covering the most frequently needed dimensions for AC maintenance, plumbing, and general mechanical repairs. Each size is stored in its own compartment within the organized storage box.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this O-ring assortment suitable for air conditioning high-pressure lines?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The nitrile rubber O-rings in this kit are designed to withstand high-pressure environments, making them a reliable choice for sealing air conditioning compressor fittings, refrigerant lines, and valve connections. Always verify the specific pressure and chemical compatibility ratings for your application before installation.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can this kit be used for applications beyond air conditioning?\u003c\/h4\u003e\n\u003cp\u003eA: Absolutely. While the kit is marketed for AC maintenance, the wide size range and durable nitrile rubber construction make it equally useful for automotive hydraulic systems, plumbing fittings, appliance repair, pneumatic tools, and general industrial sealing tasks.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What material are these O-rings made from, and why does it matter?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"These O-rings are made from nitrile rubber (NBR), a synthetic elastomer known for its excellent resistance to oils, refrigerants, hydraulic fluids, and high-pressure environments. 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