200Pcs HVAC Valve Core Kit Valve Stem Cores with Blue Seal

► Package Includes: 200 x HVAC Valve Stem Cores ► Product Features:Material: Premium Rust-Proof Stainless Steel Valve Body + Upgraded Blue PTFE Teflon SealSingle Core Size: Length 19.5mm, Diameter 5mm, Standard Universal HVAC SizePressure Rating: High-pressure compatible for R410A, R32 & R22 refrigeration systemsWide Compatibility: Fits automotive air conditioning, household HVAC, commercial refrigeration equipmentEasy Installation: Matches all standard Schrader valve core removal tools, no special skills required► Important Note:All dimensions are manually measured, slight error of 0.5–1mm is acceptable.Blue seal color may have minor chromatic aberration under different light, subject to real objects.Avoid long-term soaking in water or corrosive refrigerant liquid to extend service life of stainless steel valve cores.Please keep the valve cores inside sealed storage bags to reduce the chance of blue PTFE gaskets going missing during storage.

• Premium Blue Seal: Upgraded blue PTFE (Teflon) seal performs excellently under high working pressure. Engineered to hold reliable tightness under working pressures of R410A and R32 refrigerants, effectively lowering the risk of refrigerant leakage.
• 200 Pack Bulk Valve Cores: Get 200 high-quality HVAC valve cores in one convenient pack. Ideal for HVAC repair shops, refrigeration technicians, and maintenance teams.
• Stainless Steel Construction: Made from premium stainless steel, these valve stem cores resist corrosion, rust, and wear even in harsh HVAC and refrigeration environments. The 19mm standard size fits most common Schrader service ports in air conditioning and refrigeration systems.
• Universal Compatibility: These AC valve cores are fully compatible with R410A, R32, and R22 refrigerant systems — covering both modern high-pressure refrigerants and older R22 systems. Works across residential HVAC, commercial refrigeration, automotive AC, and heat pump service ports.
• Quick Installation with Standard Valve Core Tools: Designed to work with any standard Schrader valve core removal tool (not included), these replacement valve cores install in seconds — no special tools or skills required.