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Plastic A/C security caps set, thirty pieces, click-lock design, red and blue, for R-134a systems

AirSept

AirSept 72921 A/C Security Caps 30-Piece Set

SKU CH-ZGD2-V51GB

Thirty-piece set of plastic click-lock security caps for R-134a automotive A/C systems, including ten high-side and ten low-side caps

  • 30-piece set covers 10 high-side and 10 low-side service ports
  • Click-lock design secures caps on R-134a A/C fittings
  • Plastic construction resists corrosion and vibration damage
  • 1 3/32 in outside diameter matches standard automotive A/C valves
  • New condition ensures clean threads and reliable seal

30-Piece A/C Security Cap Set

The AirSept 72921 kit supplies thirty plastic caps designed for R-134a automotive air-conditioning systems. Ten caps fit high-side service ports and ten fit low-side ports, with the remaining pieces providing additional coverage. Each cap uses a click-lock mechanism that secures without tools. The set is new and ready for immediate workshop use.

For R-134a Service Work

Technicians servicing R-134a systems can seal both service-port sizes with one kit, reducing the chance of refrigerant loss and contamination. Shops that work exclusively on newer refrigerant types or that require metal caps will not find a match here. The plastic construction suits standard service intervals but is not intended for permanent high-pressure sealing.

Click-Lock Tool-Free Fit

The defining specification is the click-lock design that installs and removes by hand, eliminating the need for a separate cap wrench. Outside diameter measures 1 3/32 inches across all pieces, ensuring a consistent fit on SAE-standard R-134a ports. This single feature determines whether the kit matches the technician's workflow.

Highlights

  • 30-piece set covers 10 high-side and 10 low-side service ports
  • Click-lock design secures caps on R-134a A/C fittings
  • Plastic construction resists corrosion and vibration damage
  • 1 3/32 in outside diameter matches standard automotive A/C valves
  • New condition ensures clean threads and reliable seal

Specifications

BrandAIRSEPT

Questions about this item

What A/C system refrigerant must my vehicle use for these caps to fit?

These caps are designed for R-134A automotive A/C systems, matching the service ports on that refrigerant type.

Will the 1 3/32 in outside diameter caps thread onto the original service ports on my older R-134A vehicle?

Yes, the caps are made for standard R-134A service ports, so they fit the existing high-side and low-side fittings on older systems.

How can I confirm the click-lock mechanism has engaged properly after I install a cap?

Press the cap onto the port until you feel and hear a distinct click; the cap should then resist gentle tugging without turning.

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