SKU: 69325295219

Mastercool 63736-K Economy R134a/R1234yf Conversion Kit

Sale price$93.07 Regular price$103.41
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Ships within 48 hours · Estimated delivery Oct 11 - Oct 16

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Description

Mastercool 63736-K Economy R134a/R1234yf Conversion KitECONOMY R134a R1234yf CONVERSION KIT. Easily convert any R134a manifold gauge set to a R1234yf manifold gauge set. Package includes Mastercool (67434) high side R1234yf 12 mm F x 17 mm quick coupler, Mastercool (67534) low side R1234yf 12 mm F x 14 mm quick coupler, Mastercool (83633) 1 2 ACME M x 1 2 ACME F LH thread adapter and (2) Mastercool (83735) 12mm M x 14mm F R1234yf adapters. Features EASILY CONVERT any R134a manifold gauge set to a R1234yf

ECONOMY R134a/R1234yf CONVERSION KIT. Easily convert any R134a manifold gauge set to a R1234yf manifold gauge set. Package includes Mastercool (67434) high side R1234yf 12 mm-F x 17 mm quick coupler, Mastercool (67534) low side R1234yf 12 mm-F x 14 mm quick coupler, Mastercool (83633) 1/2 ACME-M x 1/2 ACME-F LH thread adapter and (2) Mastercool (83735) 12mm-M x 14mm-F R1234yf adapters.

Features

  • EASILY CONVERT any R134a manifold gauge set to a R1234yf manifold gauge set

  • R1234yf HIGH AND LOW SIDE COUPLERS allow recovery of entire refrigerant, including the space between the coupler & fitting

  • MALE X FEMALE ADAPTER is 1/2 ACME-M x 1/2 ACME-F LH thread

  • (2) MALE X FEMALE ADAPTERS are 12mm-M x 14mm-F R1234yf

Specifications

Manufacturer : MASTERCOOL

Brand : MASTERCOOL

Model : Mastercool 63736-K Economy R134a/R1234yf Conversion Kit

Item Weight : 2 pounds

Product Dimensions : 1 x 1 x 2 inches

Item model number : 63736-K

Exterior : STEEL

Manufacturer Part Number : 63736-K

OEM Part Number : 63736-K

Cover Included : High side R1234yf 12 mm-F x 17 mm quick coupler, Low side R1234yf 12 mm-F x 14 mm quick coupler, 1/2 ACME-M x 1/2 ACME-F LH thread adapter, (2) 83735 12mm-M x 14mm-F R1234yf adapters

Special Features : Kit Includes: 67434 high side R1234yf 12 mm-F x 17 mm quick coupler, 67534 low side R1234yf 12 mm-F x 14 mm quick coupler, 83633 1/2 ACME-M x 1/2 ACME-F LH thread adapter, (2) 83735 12mm-M x 14mm-F R1234yf adapters

Lift Type : HAND-HELD SCREW-ON

ASIN : B07P6R7869

Best Sellers Rank : #2,396,321 in Automotive (See Top 100 in Automotive) #113 in Automotive Replacement Air Conditioning Core Repair Kits

Date First Available : February 26, 2019

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 69325295219

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4.2 ★★★★★
Based on 25 reviews
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kkl
Louisville, US
★★★★★ 5
Very good product
Size: Medium, Color: (001) Black / Black / Pitch Gray
I purchased these to wear inside lowcut slip on casual shoes, I don't particularly like to not wear socks in my shoes for hygienic reasons. Prior to purchasing these socks, all I could find were those made of very light beige hosiery type material , and my slip on shoes would slide around a bit. These are light weight and breathable athletic type material, with a very good gripper strip at the heel. One pair of my slip on casual shoes have a particularly lower cut in the toe area, but the shoe is black and I chose the black color and though I see a hint of the sock there, it matches and does not detract from the look of the casual solid black shoe
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
A
Verified Purchase
Anna Wylda
Phoenix, US
★★★★★ 5
They stay out! No more sock wads!
Size: Medium, Color: (100) White / White / Mod Gray
Best no show socks ever made!!!!! I've been struggling for 2 years to find ones that actually stay on your foot, even other national brands, and I just became content wearing my sneakers without socks. They ALWAYS slid down into my show & I ended up walking on a wad of sock until I could fix it...or usually just took them off after a couple of tries. Enter Under Armor!!! They a mid weight, but not very thick & still breathable. They work too by actually staying on your foot! Not once have they slid down into my show!! Very comfortable but they could be a little more affordable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 1, 2025
R
Verified Purchase
Rebekah
Lake Worth, US
★★★★★ 5
Love!
Size: Large, Color: (100) White / White / Mod Gray
Ive tried so many no show socks but I love these. This is the 3rd set I've bought. They never slip off and the material is thin and breathable. Perfect for working out.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 2, 2026
B
Verified Purchase
Becky
Louisville, US
★★★★★ 5
True no-show socks that don’t slide down!
Size: Medium, Color: (100) White / White / Mod Gray, Size: Medium, Color: (100) White / White / Mod Gray
This is the first pair of no-show socks I’ve tried that actually don’t slide down into my shoes. Trust me… I have tried lots of different pairs and this is the one! They fit perfectly. They’re not too thick and they’re obviously durable because I wash them after each wear, so daily.
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Reviewed in the United States on March 21, 2026
R
Verified Purchase
Raquel Hall
Whiting, US
★★★★★ 4
Great fit but expensive
Size: Medium, Color: (252) Blush Beige / White / Castlerock
These are really great socks. I love them, but they are definitely pricey.
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Reviewed in the United States on March 30, 2026

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