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AirSept 90021 large AC oil injector with sight glass, hose and quick connect coupler

AirSept

AirSept 90021 Large AC Oil Injector with Sight Glass

SKU CH-EFK2-PPQZR

Injects refrigerant oil into air-conditioning systems and includes a sight glass for visual monitoring

  • Product typeAccessories & Compressors
  • Large-capacity oil injection for AC systems
  • Clear sight glass enables precise fill monitoring
  • Durable aluminium, rubber and steel construction
  • Includes hose and quick-connect coupler for immediate use
  • Single-unit package ready for professional servicing

Large AC Oil Injector with Sight Glass

The AirSept 90021 is a large air-conditioning oil injector designed for HVAC technicians servicing refrigerant systems. It delivers measured amounts of compressor oil during maintenance or retrofit work. The transparent sight glass lets the operator confirm oil level and flow visually. This tool suits professionals who need accurate oil charging on site.

Oil injector, hose, and quick-connect coupler

The package includes the injector body, a flexible hose, and a quick-connect coupler ready for immediate use. The coupler speeds attachment to service ports without additional fittings. The hose provides reach around tight engine bays or condenser coils. Together they reduce setup time compared to assembling separate components.

Aluminum, rubber, and steel construction

The body combines aluminum, rubber, and steel for resistance to refrigerant oils and shop chemicals. Threaded ports accept standard AC service connections without adapters. The sight glass is integrated into the metal housing to withstand pressure cycles. Compact proportions allow one-handed operation while the coupler stays secured.

How it compares

Measured against everything we stock in Solar-Powered Chargers & Devices, at today’s prices. Recalculated every night.

Price $195.99
Pricier than about 91% of the 874 comparable items (median $25.99).

Specifications

Product
Brand nameAIRSEPT
Product typeAccessories & Compressors

Questions about this item

Will the sight glass on the AirSept 90021 need periodic cleaning or seal replacement to stay clear?

The sight glass body is built from aluminum, rubber and steel; the rubber seals may need replacement if they degrade, and the glass should be wiped clean when residue builds up.

What limits how much oil the AirSept 90021 can inject in a single sustained charging session?

The injector holds one package quantity of oil, so the reservoir capacity is the first limit reached during a continuous charge.

Does the AirSept 90021 generate noticeable heat or noise when left running all day on a large AC system?

The tool has no motor or heating element; it operates by manual pressure, so it produces no measurable heat or noise during extended use.

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