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About the Gauge
- Diam: 3"
- Dual scale: 0-300 PSI, 0-20 kPa
- Better Air Sealing: Rubber protective cover & authentic copper check valve
About Long Extension Hose
- 1/2" diameter x 18" extension hose
About Fittings
- 4 Fittings Covers Most vehicles
- M10*1.00MM; M12*1.25MM; M14*1.25MM; M18*1.50MM
About Spark Plug Adapters
- Size: 14mm&18mm
- Includes 2 rubber cones ends for quick check (no need to thread into head)