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Earl's Performance Hardline Adapters

4.52 out of 5 stars 23 Customer Reviews

Earl's hardline adapter fittings are designed for use with copper, brass, aluminum, and welded steel hydraulic tubing. Their stainless steel construction helps to prevent corrosion and provide a solid, consistent seal. The fittings are available in a variety of sizes, in both straight and 90 degree angle, to accommodate nearly any hardline plumping situation and many custom applications.

Results 1 - 17 of 17

Fitting, Adapter, Inverted Flare to NPT, Straight, Stainless Steel, Natural, 3/8 in. NPT, 5/8-18 in. Inverted Flare, Each

Part Number: EAR-02076ERL

5.0 out of 5 stars ( 3 )

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Fitting, Adapter, Inverted Flare to NPT, 90 Degree, Stainless Steel, Natural, 1/8 in. NPT, 3/8-24 in. Inverted Flare, Each

Part Number: EAR-03032ERL

5.0 out of 5 stars ( 1 )

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Fitting, Adapter, Inverted Flare to NPT, Straight, Stainless Steel, Natural, 1/8 in. NPT, M10 x 1.0 Inverted Flare, Each

Part Number: EAR-02102ERL

3.0 out of 5 stars ( 2 )

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Fitting, Adapter, Inverted Flare to NPT, Straight, Stainless Steel, Natural, 1/8 in. NPT, 3/8-24 in. Inverted Flare, Each

Part Number: EAR-02032ERL

5.0 out of 5 stars ( 6 )

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Fitting, Adapter, Inverted Flare to NPT, Straight, Stainless Steel, Natural, 1/2-20 in., 1/8 in. NPT, Each

Part Number: EAR-02052ERL

Not Yet Reviewed

Estimated Ship Date: Sep 8, 2025 if ordered today

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Estimated Ship Date: Sep 8, 2025 if ordered today

Fitting, Reducer, Inverted Flare to Inverted Flare, Straight, Stainless Steel, Natural, 3/8-24 in. Inverted Flare, 7/16-24 in. Inverted Flare, Each

Part Number: EAR-00117ERL

Not Yet Reviewed

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Fitting, Reducer, Inverted Flare to Inverted Flare, Straight, Stainless Steel, Natural, 1/2-20 in. Inverted Flare, 5/8-18 in. Inverted Flare, Each

Part Number: EAR-00121ERL

5.0 out of 5 stars ( 1 )

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Fitting, Adapter, Inverted Flare to NPT, Straight, Stainless Steel, Natural, 1/4 in. NPT, 5/8-18 in. Inverted Flare, Each

Part Number: EAR-02074ERL

Not Yet Reviewed

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Fitting, Adapter, NPT to Metric, Straight, Stainless Steel, Natural, 1/8 in NPT Male, M10 x 1.0 Female Bubble , Each

Part Number: EAR-02112ERL

Not Yet Reviewed

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Fitting, Reducer, Inverted Flare to Inverted Flare, Straight, Stainless Steel, Natural, 9/16-18 in., 3/8-24 in., Each

Part Number: EAR-00111ERL

3.6 out of 5 stars ( 5 )

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Fitting, Adapter, Inverted Flare to Inverted Flare, Straight, Stainless Steel, Natural, 5/8-18 in., 1/2-20 in. Inverted Flare, Each

Part Number: EAR-00120ERL

Not Yet Reviewed

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Fitting, Reducer, Inverted Flare to Inverted Flare, Straight, Stainless Steel, Natural, 1/2-20 in. Inverted Flare, 3/8-24 in. Inverted Flare, Each

Part Number: EAR-00115ERL

5.0 out of 5 stars ( 1 )

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Fitting, Reducer, Inverted Flare to Inverted Flare, Straight, Stainless Steel, Natural, 1/2-20 in. Male, 9/16-18 in. Female, Each

Part Number: EAR-00112ERL

5.0 out of 5 stars ( 1 )

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Fittings and Adapters, Hardline Adapters, Straight, Stainless, Natural, 1/4 in. NPT Male NPT, 1/2 in.-20 Inverted Flare Female Inverted Flare, Each

Part Number: EAR-02054ERL

Not Yet Reviewed

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Fitting, Reducer, Inverted Flare to Inverted Flare, Straight, Stainless Steel, Natural, 7/16-24 in. Male, 3/8-24 in. Female, Each

Part Number: EAR-00114ERL

Not Yet Reviewed

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Fitting, Adapter, Inverted Flare to Inverted Flare, Straight, Stainless Steel, Natural, 3/8-24 in., M10 x 1.0 Inverted Flare, Each

Part Number: EAR-00122ERL

5.0 out of 5 stars ( 2 )

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Fittings and Adapters, Hardline Adapters, Straight, Stainless, Natural, 1/2 in.-20 Inverted Flare Female, 9/16 in.-18 Inverted Flare Male, Each

Part Number: EAR-00113ERL

5.0 out of 5 stars ( 1 )

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