If I put 134a gas in a 1234yf system car, will the air conditioning system work without problems?

Yes, you could do that. But that needs to be evacuated all r1234yf gas in advance.

will it fit on 2014 honda crv

These will fit any vehicle that has 1234yf system. Your Honda is R134a so will not require these adapters.so the answer is no they will not fit your Honda

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Tallew R1234yf to R134a Adapter, Quick Couplers High Low Side for AC | Brass Couplers with Color Coded Caps, R1234yf to R134a Conversion, For Automotive AC Evacuation and Recharge Service

Product ID: 443561507

Details

Brand
Tallew
Color
Blue and Red
Connector Type
Adapter
Exterior Finish
Brass
Item Weight
3.52 ounces
Item dimensions L x W x H
2.93 x 1.1 x

🎨Color-coded caps for easy ID

🔧2-piece high/low side adapter set

🛡️Durable brass construction

¥4340

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Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔄 Upgrade your AC game with the ultimate quick-connect adapter kit!

BUILT TO LAST - Premium brass body resists rust and deformation, ensuring long-term reliability under pressure.
COMPACT PORTABLE - Small, ergonomic design fits comfortably in your hand and toolbox without bulk.
DUAL SIDED PRECISION - High & low pressure adapters in one compact kit for seamless R1234yf to R134a conversion.
INSTANT IDENTIFICATION - Red and blue color-coded caps eliminate guesswork, speeding up your AC service workflow.
VERSATILE COMPATIBILITY - Perfect for automotive AC evacuation, recharge, and even refrigerator hose conversions.

The Tallew R1234yf to R134a Adapter Kit includes two brass quick couplers—one high pressure (red) and one low pressure (blue)—designed for efficient automotive AC evacuation and recharge. Compact and color-coded for easy use, these durable adapters enable seamless conversion between R1234yf and R134a refrigerants, making them an essential tool for professional-grade HVAC servicing.

Specifications

ASIN	B0B17KWNHT
Best Sellers Rank	#18,376 in Automotive ( See Top 100 in Automotive ) #4 in Automotive Replacement Air Conditioning Adapters
Brand Name	Tallew
Color	Blue and Red
Connector Type	Adapter
Customer Reviews	4.4 4.4 out of 5 stars (351)
Exterior Finish	Brass
Item Dimensions	2.93 x 1.1 x 0.87 inches
Item Weight	3.52 ounces
Manufacturer	Tallew
Manufacturer Part Number	Tallew-Quick Couplers -07
Material Type	Brass
Number of Pieces	2
Set Name	R1234yf Adapter Kit
Thread Size	0.25
Thread Type	NPT
Unit Count	1 Count

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¥4340

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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