Mastercool 82224-3/8 — E-Z Snap Low-Side Quick Coupler 3/8" FL-M x 13mm

Note: In the product image, the high-side coupler is shown in red, and the low-side coupler is shown in blue. This product is the blue (low-side) coupler.

Professional E-Z Snap low-side quick coupler with patented design that easily snaps on and off A/C system service ports under any pressure. Features 3/8" FL-M connection and 13mm service port fitting for R134a and R410A systems. The E-Z Snap automatically adjusts to various service port dimensions allowing fast and immediate access. Swivel feature enables easy access to all service ports, even in the tightest quarters.

Key Features:

• Patented E-Z Snap Design – Snaps on/off under any pressure (Patent# 5,244,010)
• 3/8" FL-M Connection – For manifold hoses and equipment
• 13mm Service Port – Low-side (suction) connection
• Auto-Adjusting – Automatically adjusts to various service port dimensions
• Swivel Feature – Easy access in tight quarters
• No Tools Required – Fast connection without wrenches
• Works Under Pressure – Connect/disconnect whilst system is pressurised
• Certified Compliance – Meets SAE, UL, and EPA requirements for refrigerant containment

Specifications:

• Model: 82224-3/8
• Type: E-Z Snap quick coupler
• Side: Low-side (suction/blue)
• Hose connection: 3/8" FL-M (flare male)
• Service port: 13mm
• Application: R134a, R410A and compatible refrigerants
• Operation: Snap-on quick connect
• Swivel: Yes
• Compliance: SAE, UL, EPA certified
• Patent: #5,244,010
• Weight: 10 kg (shipping weight)
• SKU: 82224-3/8
• Barcode: 700376117578
• HS Code: 84189910

Complete E-Z Snap Range:

3/8" FL-M Couplers (for 3/8" manifolds):

• High-Side (16mm): 82214-3/8 — E-Z Snap High-Side Quick Coupler 3/8" FL-M x 16mm (red in image)
• Low-Side (13mm): 82224-3/8 — This coupler (blue in image)

1/4" FL-M Couplers (for standard manifolds):

• High-Side (16mm): 82214-E — E-Z Snap 1/4" FL-M x 16mm
• Low-Side (13mm): 82224-E — E-Z Snap 1/4" FL-M x 13mm

14mm-F Couplers (for European manifolds):

• High-Side (16mm): 82214 — E-Z Snap 14mm-F x 16mm
• Low-Side (13mm): 82224 — E-Z Snap 14mm-F x 13mm

Metric Thread Couplers (for Japanese/Asian vehicles):

• High-Side (16mm): 82214-J — E-Z Snap M12 x 1.75 x 16mm
• Low-Side (13mm): 82224-J — E-Z Snap M10 x 1.5 x 13mm

Replacement O-Rings:

• 80034 — O-Ring for 16mm Quick Coupler (high-side)
• 80134 — O-Ring for 13mm Quick Coupler (low-side)

Compatible 3/8" Manifolds:

• 57461-E — Manifold 3/8" 63mm R410A with 3 x 150cm + 1 x 3/8" Hoses
• 57472-E — Manifold 3/8" 63mm R410A with 3 x 180cm + 1 x 3/8" Hoses
• 57472-EB — Manifold 3/8" 80mm R410A with 3 x 180cm + 1 x 3/8" Hoses

Applications:

• R134a automotive A/C service
• R410A air conditioning service
• High-pressure refrigerant systems
• Heat pump installations
• Low-side (suction) connections
• System charging and recovery
• Pressure diagnostics

What Makes E-Z Snap Unique?

The patented E-Z Snap design allows connection and disconnection whilst the system is under pressure - something traditional couplers cannot do safely. The coupler automatically adjusts to various service port dimensions, eliminating the need for multiple couplers. The swivel feature allows the hose to rotate freely, preventing kinking and making it easier to work in tight engine bays.

Why 3/8" Connection?

The 3/8" flare male connection is designed for use with 3/8" manifold gauge sets and hoses, which are required for R410A and other high-pressure refrigerant systems. The larger connection provides better flow capacity and is specifically designed to handle higher pressures safely.

High-Side vs Low-Side:

• High-Side (Red) - 82214-3/8: 16mm service port, connects to discharge/high-pressure side
• Low-Side (Blue) - 82224-3/8: 13mm service port, connects to suction/low-pressure side

Benefits:

• Works Under Pressure – Connect/disconnect without depressurising system
• Auto-Adjusting – Fits various service port dimensions
• Time-Saving – No tools required for connection
• Swivel Design – Prevents hose kinking in tight spaces
• Leak-Free – EPA-certified refrigerant containment
• Professional Efficiency – Streamlined workflow for busy technicians
• Safety Certified – Meets SAE, UL, and EPA requirements

How to Use:

1. Ensure service port is clean and free from debris
2. Align coupler with 13mm low-side service port
3. Push coupler onto service port - it will snap and lock automatically
4. Coupler adjusts to port dimensions and seals
5. Swivel hose as needed to prevent kinking
6. Perform service work (coupler works under pressure)
7. To disconnect, pull back collar on coupler
8. Remove coupler from service port

Maintenance:

• Keep coupler clean and free from debris
• Inspect O-rings regularly for wear
• Replace O-rings if leaks develop (use part 80134)
• Store in protective case when not in use
• Lubricate O-rings occasionally with refrigerant oil
• Check swivel action - should rotate freely

Professional Quality: Mastercool E-Z Snap quick couplers are built to professional standards with patented technology for fast, reliable connections in demanding HVAC/R service environments. Meets SAE, UL, and EPA requirements for refrigerant containment.