C&D CD2037 1/4F x 3/8M Flare Sure Seal Coupler

Sure Seal – Retaining Couplers

When attached to an access fitting, the “Sure-Seal” retaining coupler automatically opens and depresses the valve core—all in one smooth action. Once disconnected, it traps refrigerant in the charging hose. Designed to be left permanently installed at the hose end, its seals remain compatible with newer refrigerants. And if internal parts ever need replacing, a parts kit is available.

FEATURES:

• 1/4″ female flare “Sure-Seal” retaining coupler × 3/8″ male flare
• Automatically opens and depresses valve core in one step
• Seals compatible with modern refrigerants

INCLUDES:

1 × CD2037 coupler.

SPECIFICATIONS:

• Brand: C&D
• Part Number: CD2037
• Functions: Adapter
• Weight: 0.141 lb
• Dimensions (L×W×H): 1.84” × 0.887” × 0.887”
• Country of origin: USA

RECOMMENDED ADD-ONS:

• For access to systems via flare lines, pair this coupler with the C&D CD9611 Forged Brass Flare Access Tee, featuring a depressor tip and three 1/4″ male flare branches—perfect for connecting gauges or hoses.
• Need a 1/4″ × 1/4″ Straight retaining coupler? Check out the C&D CD2035 Sure-Seal Coupler
• Looking for a flare/swage tool to prep tubing before installation? The Hilmor Quick-Engage Flare and Swage Kit offers faster, precise flares with minimal effort :contentReference[oaicite:3]{index=3}.

These add-ons complement the CD2037 — whether you're creating new connections, doing maintenance, or prepping tubing — and can help you build a more complete, efficient toolkit.