FlareSeal 1/4" SAE Flare Gaskets 10-Pack — Copper Clip-On Crush Seal for HVAC/Refrigeration Lines

FlareSeal FS04-10PK are copper, thread-lock coated flare gaskets engineered to clip onto 1/4" SAE male flares and create a reliable crush-style seal for refrigerant and HVAC fittings.

If you install, repair, or maintain refrigeration, HVAC, or ductless mini-split systems, wasted time chasing flare leaks is a common headache. FlareSeal's multi-ring copper gasket with a full-thread-lock coating is designed to address surface scratches, small misalignments, and leaking Schrader cores by providing an easy clip-on seal that works on new and existing connections. This 10-pack of 1/4" gaskets fits standard SAE 45° flare fittings and is optimized for quick, dependable service on pilot lines, thermostatic expansion valves, filter driers, and more.

How does FlareSeal stop leaks on a 1/4" flare connection?

The gasket uses a multi-ring flare surface that creates multiple crush points for sealing, while the thread-lock coating increases friction and fills minor surface defects. It clips onto the male flare so you can assemble the fitting normally; when tightened, the rings compress to form the seal without needing extra torque or adhesives.

• Multi-ring copper face provides several contact bands for a consistent crush seal.
• Full copper base metal conforms to flare imperfections and scratches.
• Thread-lock coating prevents vibration loosening and improves immediate sealing.

Can FlareSeal be used on existing leaking fittings and Schrader valves?

Yes — FlareSeal is designed to clip onto existing male flares and stop leaks without disassembling the entire line. For Schrader valve issues, use the FlareSeal Schrader-Seal configuration with a compatible brass flare cap to create a crush seal that isolates a leaking core.

• Clips on without full line replacement or soldering.
• Works as a repair solution for small leaks caused by worn or scratched flare faces.
• Compatible with a brass cap arrangement to seal leaking Schrader cores.

What installations and components are these 1/4" gaskets best suited for?

The 1/4" size is commonly found on control and pilot lines, sensors, and service ports used in refrigeration and HVAC systems. FlareSeal is compact enough for tight spaces in mini-splits and efficient for service techs who need a dependable quick-fix that also performs in finished systems.

• Mini-split and ductless system lines where space is limited.
• Pilot lines, thermostatic expansion valves, evaporator and filter drier connections.
• Service ports and small-bore refrigerant or LP gas flare connections.

How do I install a FlareSeal FS04-10PK gasket and what tools are needed?

Installation is straightforward: slide the gasket onto the male flare so the rings face the female fitting, then assemble and tighten the flare nut by hand and wrench to specification. No special adhesives or soldering are required; standard flare wrenches and torque procedures apply.

• Clip gasket onto male flare with rings facing the mating surface.
• Tighten the flare nut using appropriate flare wrenches and manufacturer torque guidance.
• No additional sealant required — thread-lock coating and ring structure do the work.

Who this product is for: FlareSeal FS04-10PK is ideal for HVAC technicians, refrigeration service professionals, and DIYers who want a compact, reliable way to prevent or repair leaks on 1/4" SAE flare connections. If you frequently service mini-splits, pilot lines, or small-bore refrigerant fittings and need a quick-install, OEM-trusted gasket that reduces rework and field calls, this 10-pack provides spares for jobs, service trucks, or supply kits.