What are the three plastic ferrules and tiny brass plug used for?

I suspect they are replacement seals for the valves on the manifold.

what fitting do i need to go from yellow hose to a fjc 6030 freon can tap. the can tap thread is much different than the hose or adapter.

ACME Adapter Fitting: 1/4" SAE to 1/2" ACME. If you have the different screw thread, you can buy a suitable adapter online.

What is the acme adapter for it dont fit my top style can tap?

This is for R12, R22, R502 and R134A Refrigerants. ACME Adapter fitting: 1/4" Male to 1/2" Female.

does this work on home AC units or only auto units

COULD BE BOTH, There are two adapters on the red and blue hoses, they unscrew, and you can use them on residential units, HOWEVER, the automobile A/C uses a type of oil, and the HOME unit uses a different kind of oil, so IF you intermix the two, it "MAY" cause problems, that is why, professionals use two different set of guages, one for residential,and a different one for auto. AND ! The one for home maybe R-406 or R-22, has a background (Green) for that type of Freon, or Pink for R-410, and the one for Auto, has a background for say R-134, I forget that color. You do this at your own risk.

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OMT 3-Way AC Manifold Gauge Set for R134a R12 R502 R22 with 5ft Hoses

OMT 3-Way AC Manifold Gauge Set for R134a R12 R502 R22 with 5ft Hoses

Product ID: 23605713

Details

Brand
Orion Motor
Item dimensions L x W x H
9.84 x 3.94 x
Material
Aluminum Brass
Number of Items
7

🌈Color-coded 4-layer hoses

⏱️1.6% accuracy calibration

🛠️Solid brass & ABS durability

336.91 DT

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Description

🛠️ Master Your AC Game with Precision & Power!

HEAVY DUTY HEAVY DUTY - Solid brass construction and reinforced hoses rated for 600 psi daily pressure ensure longevity.
PRECISION YOU CAN TRUST - Calibrated to 1.6% accuracy for flawless diagnostics every time.
ALL IN ONE HVAC SOLUTION - Includes R134a couplers, piercing & self-sealing can taps, and a 29° adapter for versatile servicing.
BUILT TO BRAVE THE ELEMENTS - Hybrid anti-shock gauges combine oil-filled cores with dry dials for year-round reliability.
STAY AHEAD WITH REAL TIME MONITORING - Integrated moisture indicator keeps you informed on coolant condition to prevent costly failures.

The OMT 3-Way AC Manifold Gauge Set is a professional-grade HVAC tool designed for servicing R12, R134a, R502, and R22 refrigerants. Featuring hybrid anti-shock gauges with 1.6% accuracy, solid brass construction, and color-coded 5ft hoses rated for up to 600 psi, it offers durability and precision. Complete with couplers, can taps, and a moisture indicator, this set is ideal for both DIY enthusiasts and HVAC pros aiming for reliable, efficient AC maintenance.

Specifications

ASIN	B019W5LIVS
Best Sellers Rank	#22,559 in Automotive ( See Top 100 in Automotive ) #116 in Air Conditioning Line Repair Tools
Brand Name	Orion Motor Tech
Customer Reviews	4.2 4.2 out of 5 stars (1,857)
Included Components	1 x 3-Way Gauge, 3 x Hoses, 2 x Quick Couplers, 1 x 29° Adapter, 1 x Can Tap
Item Dimensions	9.84 x 3.94 x 7.09 inches
Manufacturer	Orion Motor Tech
Material Type	Aluminum, Brass, PVC
Model	C2I_INV_B019W5LIVS_R
Number of Items	7
Number of Packs	1
Part Number	DMG-0001-00
Thread Style	Npt
Unit Count	1 Count
Warranty Description	1 year

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