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Parker CPI™ / A-LOK® Tube Fittings

Parker Hannifin CPI™/A-LOK® Instrumentation Tube Fittings are designed as leak-free connections for process, power and instrumentation applications. These single and two ferrule fittings are manufactured to the highest quality standards and are available in a broad range of sizes, materials and configurations.

Parker CPI/A-LOK Tube Fittings Catalog (PDF)

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CPI/A-LOK

3798 items

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  • Parker 4M-Q6P-SS
    4M-Q6P-SS Parker CPI/A-Lok Series Instrumentation Couplings
    4M-Q6P-SS

    Parker Hannifin

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    Product Type: Nipples

    Parker CPI Series Instrumentation Coupling, 3/8 316 stainless Steel non-valved plug, 1500 psig rating, 1/4" MNPT ends
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  • Parker 4M-Q4P-SS
    4M-Q4P-SS Parker CPI/A-Lok Series Instrumentation Couplings
    4M-Q4P-SS

    Parker Hannifin

    A tariff surcharge has been applied to the price of this item.

    Product Type: Nipples

    Parker CPI Series Instrumentation Coupling, 1/4 316 stainless Steel non-valved plug, 3000 psig rating, 1/4" MNPT ends
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  • Parker A-lok 4M3SC4-B
    4M3SC4-B Parker A-Lok Male Connector to O-ring Pipe Thread
    4M3SC4-B

    Parker Hannifin

    Product Type: Straights

    End 1 Type: Double Ferrule Tube Fitting

    End 2 Type: O-Ring MNPT

    Parker A-lok male connector, brass, 1/4" double ferrule tube fitting x 1/4" O-ring MNPT
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  • Parker A-lok 4M3SC4-316
    4M3SC4-316 Parker A-Lok Male Connector to O-ring Pipe Thread
    4M3SC4-316

    Parker Hannifin

    Product Type: Straights

    End 1 Type: Double Ferrule Tube Fitting

    End 2 Type: O-Ring MNPT

    Parker A-lok male connector, 316SS, 1/4" double ferrule tube fitting x 1/4" O-ring MNPT
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  • Parker A-lok 4M3SC2-316
    4M3SC2-316 Parker A-Lok Male Connector to O-ring Pipe Thread
    4M3SC2-316

    Parker Hannifin

    Product Type: Straights

    End 1 Type: Double Ferrule Tube Fitting

    End 2 Type: O-Ring MNPT

    Parker A-lok male connector, 316SS, 1/4" double ferrule tube fitting x 1/8" O-ring MNPT
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  • Parker A-lok 4M2SC4-316
    4M2SC4-316 Parker A-Lok Male Connector to O-Ring Straight Thread
    4M2SC4-316

    Parker Hannifin

    Product Type: Straights

    End 1 Type: Double Ferrule Tube Fitting

    End 2 Type: O-Ring Straight Thread

    Parker A-lok male connector, 316SS, 1/4" double ferrule tube fitting x 7/16-20 O-ring straight thread
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  • Parker A-lok 4M1SC8-316
    4M1SC8-316 Parker A-Lok Male Connector SAE Straight Thread
    4M1SC8-316

    Parker Hannifin

    Product Type: Straights

    End 1 Type: Double Ferrule Tube Fitting

    End 2 Type: SAE Straight Thread

    Parker A-lok male connector, 316SS, 1/4" double ferrule tube fitting x 3/4-16 SAE straight thread
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  • Parker A-lok 4M1SC3-316-VO
    4M1SC3-316-VO Parker A-Lok Male Connector SAE Straight Thread
    4M1SC3-316-VO

    Parker Hannifin

    Product Type: Straights

    End 1 Type: Double Ferrule Tube Fitting

    End 2 Type: SAE Straight Thread

    Parker A-lok male connector, 316SS, 1/4" double ferrule tube fitting x 3/8-24 SAE straight thread, with Viton O-ring
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