🎉 Up to 70% Off Selected ItemsShop Sale
3/8" & 5/8" MrCool DIY Coupler Kit - No Communication Wire for 24k & 36k Mini-Split Air Handlers
HomeStore

3/8" & 5/8" MrCool DIY Coupler Kit - No Communication Wire for 24k & 36k Mini-Split Air Handlers

3/8" & 5/8" MrCool DIY Coupler Kit - No Communication Wire for 24k & 36k Mini-Split Air Handlers

MRCOOL DIY Coupler Kit – 3/8" & 5/8" (No Communication Wire)

Compatible with both R-410A and R-454B MRCOOL Systems

Extend your MRCOOL DIY mini split line sets effortlessly using the 3/8" & 5/8" MRCOOL DIY Coupler Kit. Designed specifically for 24k and 36k BTU mini-split air handlers, this kit is perfect for adding extra length to your system without the need for additional communication wire.

  • Works with older 4th Gen R-410A and newest 5th Gen R-454B MRCOOL systems
  • Includes couplers only – no communication wire
  • Ideal for line set extensions on 24k and 36k air handler models
  • Ensures a secure, leak-free connection for optimal performance
  • DIY-friendly – no vacuum or special tools needed

Whether you're upgrading to the latest generation or expanding your current setup, this coupler kit offers a simple, effective, and reliable solution for extending your MRCOOL pre-charged line sets. Upgrade your comfort and flexibility with confidence.

$71.75

Original: $205.00

-65%
3/8" & 5/8" MrCool DIY Coupler Kit - No Communication Wire for 24k & 36k Mini-Split Air Handlers

$205.00

$71.75

More Images

3/8" & 5/8" MrCool DIY Coupler Kit - No Communication Wire for 24k & 36k Mini-Split Air Handlers - Image 2

3/8" & 5/8" MrCool DIY Coupler Kit - No Communication Wire for 24k & 36k Mini-Split Air Handlers

MRCOOL DIY Coupler Kit – 3/8" & 5/8" (No Communication Wire)

Compatible with both R-410A and R-454B MRCOOL Systems

Extend your MRCOOL DIY mini split line sets effortlessly using the 3/8" & 5/8" MRCOOL DIY Coupler Kit. Designed specifically for 24k and 36k BTU mini-split air handlers, this kit is perfect for adding extra length to your system without the need for additional communication wire.

  • Works with older 4th Gen R-410A and newest 5th Gen R-454B MRCOOL systems
  • Includes couplers only – no communication wire
  • Ideal for line set extensions on 24k and 36k air handler models
  • Ensures a secure, leak-free connection for optimal performance
  • DIY-friendly – no vacuum or special tools needed

Whether you're upgrading to the latest generation or expanding your current setup, this coupler kit offers a simple, effective, and reliable solution for extending your MRCOOL pre-charged line sets. Upgrade your comfort and flexibility with confidence.

Product Information

Shipping & Returns

Description

MRCOOL DIY Coupler Kit – 3/8" & 5/8" (No Communication Wire)

Compatible with both R-410A and R-454B MRCOOL Systems

Extend your MRCOOL DIY mini split line sets effortlessly using the 3/8" & 5/8" MRCOOL DIY Coupler Kit. Designed specifically for 24k and 36k BTU mini-split air handlers, this kit is perfect for adding extra length to your system without the need for additional communication wire.

  • Works with older 4th Gen R-410A and newest 5th Gen R-454B MRCOOL systems
  • Includes couplers only – no communication wire
  • Ideal for line set extensions on 24k and 36k air handler models
  • Ensures a secure, leak-free connection for optimal performance
  • DIY-friendly – no vacuum or special tools needed

Whether you're upgrading to the latest generation or expanding your current setup, this coupler kit offers a simple, effective, and reliable solution for extending your MRCOOL pre-charged line sets. Upgrade your comfort and flexibility with confidence.

You may also like

-65%NEW
Thumbnail 1Thumbnail 2

DIY Couplers & Control Wire Only - FOR 6k - 9k - 12k - 18k Air Handlers

$376.00

$131.60

-65%NEW
Thumbnail 1

1/4" Quick Connector for MrCool Individual Coupler - No Communication Wire

$101.00

$35.35

-65%NEW
Thumbnail 1

1/2" Quick Connector for MrCool Individual Coupler- No Communication Wire

$113.00

$39.55

-65%NEW
Thumbnail 1Thumbnail 2

MRCOOL DIY® Coupler Set – 1/2" x 1/4" or 3/8" x 1/4" Quick Connect (No Communication Wire)

$193.00

$67.55

-65%NEW
Thumbnail 1Thumbnail 2

MRCOOL DIYCOUPLER-38 + DIYCOUPLER-58 w/ 75 Ft. of Communication Wire for 24K & 36K Line Set (DIYCOUPLER-3858K75)

$329.00

$115.15

-65%NEW
Thumbnail 1

DIY Condenser or Air Handler Line Set Adapters for 24k or 36k for Multi-Zone - Pair

$260.59

$91.21

-65%NEW
Thumbnail 1Thumbnail 2

Quick Connect Fitting Adapter 12 for 12K or 18K MRCOOL Ductless Heat Pump Condenser (DIY or EZPRO Series)

$140.08

$49.03

-65%NEW
Thumbnail 1Thumbnail 2

Quick Connect Fitting 06 for 12k or 18k MRCOOL Ductless Heat Pump Condenser (DIY or EZPRO Series)

$128.75

$45.06

NEW
Thumbnail 1

MRCOOL DIY Line Set Adapters NVC-3834 – For Central Ducted Systems (Set of 4)

$130.00

NEW
Thumbnail 1Thumbnail 2

R410A Refrigerant Mini-Split Adapter 22-Piece Kit

$39.00

NEW
Thumbnail 1Thumbnail 2

Quick Connect Fitting Set (06 and 12) for MRCOOL 12K or 18K Ductless Heat Pump Condenser (DIY or EZPRO Series)

$239.99