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MRCOOL 16FT 3/8" x 5/8" Flared Line Set Kit for 24K Olympus and Advantage Mini Split, MC16-3858

SKU MC16-3858
by MRCOOL
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Description

MRCOOL 16FT 3/8" x 5/8" Flared Line Set Kit for 24K Olympus and Advantage Mini Split (MC16-3858)

Imagine your next installation running like clockwork—no delays, no second-guessing, no callbacks. With the MRCOOL 16FT 3/8" x 5/8" Flared Line Set Kit for 24K Olympus and Advantage Mini Split, you’re not just connecting equipment; you’re building your business’s reputation for reliability, efficiency, and professional excellence.

The Backbone of Every 24K Mini Split Install

Every MRCOOL Olympus and Advantage 24K Air Handler requires a dependable, precision-fit lineset to bridge the gap between the outdoor condenser and indoor air handler. This 16-foot, pre-flared copper kit is engineered specifically for 24,000 BTU systems, ensuring you always have the right fit for the job—no more wasted time or material.

Why Business Owners and Installers Choose MRCOOL
  • Efficient Installs, Every Time: Pre-flared fittings (3/8" liquid, 5/8" suction) mean you can move from job to job with confidence, knowing each connection is tight, leak-free, and ready to perform.
  • Professional-Grade Materials: Crafted from high-quality copper with a durable bronze/metallic finish, this lineset stands up to the demands of tough install environments and delivers optimal refrigerant flow for years to come.
  • Perfect Length for Most Jobs: The 16-foot run is ideal for standard residential and light commercial installations, reducing waste and simplifying your inventory.
Make Every Jobsite a Showcase

Picture your crew arriving on-site with the right lineset in hand—no improvising, no last-minute supply runs. The installation is smooth, the system fires up perfectly, and the customer is impressed with your speed and professionalism. That’s the difference a purpose-built MRCOOL lineset can make for your business.

Key Features
  • Designed for 24K Olympus and Advantage Mini Splits
  • Line Set Length: 16 ft (maximum)
  • Fittings: Flared (3/8" liquid, 5/8" suction)
  • Color: Copper/Bronze Metallic
  • Product Dimensions: 25"W x 25.5"D x 4.75"H
  • Weight: 12 lbs
  • Proposition 65 Warning: Yes
  • Restricted States: GU, PR, VI
The Competitive Edge for Bulk Buyers

For business owners purchasing in volume, having a reliable, consistent stock of MRCOOL linesets means you’re always ready to meet demand—no matter how busy the season gets. Each kit is engineered to MRCOOL’s exacting standards, so you can trust every install to deliver comfort, efficiency, and long-term satisfaction.

Upgrade your installations—and your reputation—with the MRCOOL 16FT 3/8" x 5/8" Flared Line Set Kit. Because when every connection counts, only the best will do.

PRODUCT SPECIFICATIONS:

Product Dimensions 25"W x 25 1/2"D x 4 3/4"H
Product Weight 12
Tonnage For 24K
Color Copper
Color Family Bronze/Copper Metallic
Line Set Length 16 ft
Max Lineset Length 16 ft
Lineset Fitting Type Flared
Liquid Line Fitting 1/2
Liquid Line Size 3/8
Suction Line Fitting 3/4
Suction Line Size 5/8
Proposition 65 Warning Yes
Restricted States GU PR;VI
Freight Class 125
Shipping and Return

We offer Free Express Shipping on all of our products. Handling times are 1-2 business days and Delivery takes roughly 3-14 Business days 

For more Shipping information visit here

We offer a 2 Year (730 Day) return for our products. 

For more Return information visit here

COVERAGE AREA

HIVE WARRANTY

HVAC Hive Warranty Information:

HVAC Hive is an authorized dealer for every product on our website. Every HVAC system and component comes with its original manufacturer's warranty, guaranteeing you receive a functional, quality product.

Our 5-Year Parts & Labor Warranty Promise: We go beyond the standard coverage. If a manufacturer's warranty doesn't cover your product for a full 5 years, HVAC Hive will extend both parts and labor warranty to complete the 5-year coverage period.

Example: If your manufacturer covers 2 years parts & labor, we'll cover an additional 3 years — giving you a full 5 years of parts and labor protection.

Warranty Coverage Includes:

  • Parts replacement for manufacturing defects
  • Labor costs for covered repairs
  • System malfunctions and component failures

Warranty Details:

  • Residential, light commercial, and full commercial warranties vary based on your usage
  • Specific warranty terms and coverage periods are listed on each product page
  • Both parts and labor are covered under our extended warranty program

Making a Warranty Claim: Contact our Worker Bee Support team at 1-888-712-2465 or karim@hvachive.com . We'll handle your claim quickly and professionally, covering both parts and labor costs. You can also contact the manufacturer directly if preferred.

Questions? Need help understanding your parts & labor warranty coverage? Our team is here to explain the details and ensure you're fully protected.

Contact US
Request an Installer

Product Overview

  • Zone / ROOM:

    Zone / ROOM:

  • Air Handler BTU:

    Air Handler BTU:

  • Condenser BTU:

    Condenser BTU:

  • Outdoor Operating Temp (Cool/ heat):

    Outdoor Operating Temp (Cool/ heat):

  • Warranty

    Warranty

Description

MRCOOL 16FT 3/8" x 5/8" Flared Line Set Kit for 24K Olympus and Advantage Mini Split (MC16-3858)

Imagine your next installation running like clockwork—no delays, no second-guessing, no callbacks. With the MRCOOL 16FT 3/8" x 5/8" Flared Line Set Kit for 24K Olympus and Advantage Mini Split, you’re not just connecting equipment; you’re building your business’s reputation for reliability, efficiency, and professional excellence.

The Backbone of Every 24K Mini Split Install

Every MRCOOL Olympus and Advantage 24K Air Handler requires a dependable, precision-fit lineset to bridge the gap between the outdoor condenser and indoor air handler. This 16-foot, pre-flared copper kit is engineered specifically for 24,000 BTU systems, ensuring you always have the right fit for the job—no more wasted time or material.

Why Business Owners and Installers Choose MRCOOL
  • Efficient Installs, Every Time: Pre-flared fittings (3/8" liquid, 5/8" suction) mean you can move from job to job with confidence, knowing each connection is tight, leak-free, and ready to perform.
  • Professional-Grade Materials: Crafted from high-quality copper with a durable bronze/metallic finish, this lineset stands up to the demands of tough install environments and delivers optimal refrigerant flow for years to come.
  • Perfect Length for Most Jobs: The 16-foot run is ideal for standard residential and light commercial installations, reducing waste and simplifying your inventory.
Make Every Jobsite a Showcase

Picture your crew arriving on-site with the right lineset in hand—no improvising, no last-minute supply runs. The installation is smooth, the system fires up perfectly, and the customer is impressed with your speed and professionalism. That’s the difference a purpose-built MRCOOL lineset can make for your business.

Key Features
  • Designed for 24K Olympus and Advantage Mini Splits
  • Line Set Length: 16 ft (maximum)
  • Fittings: Flared (3/8" liquid, 5/8" suction)
  • Color: Copper/Bronze Metallic
  • Product Dimensions: 25"W x 25.5"D x 4.75"H
  • Weight: 12 lbs
  • Proposition 65 Warning: Yes
  • Restricted States: GU, PR, VI
The Competitive Edge for Bulk Buyers

For business owners purchasing in volume, having a reliable, consistent stock of MRCOOL linesets means you’re always ready to meet demand—no matter how busy the season gets. Each kit is engineered to MRCOOL’s exacting standards, so you can trust every install to deliver comfort, efficiency, and long-term satisfaction.

Upgrade your installations—and your reputation—with the MRCOOL 16FT 3/8" x 5/8" Flared Line Set Kit. Because when every connection counts, only the best will do.

PRODUCT SPECIFICATIONS:

Product Dimensions 25"W x 25 1/2"D x 4 3/4"H
Product Weight 12
Tonnage For 24K
Color Copper
Color Family Bronze/Copper Metallic
Line Set Length 16 ft
Max Lineset Length 16 ft
Lineset Fitting Type Flared
Liquid Line Fitting 1/2
Liquid Line Size 3/8
Suction Line Fitting 3/4
Suction Line Size 5/8
Proposition 65 Warning Yes
Restricted States GU PR;VI
Freight Class 125
Shipping and Return

We offer Free Express Shipping on all of our products. Handling times are 1-2 business days and Delivery takes roughly 3-14 Business days 

For more Shipping information visit here

We offer a 2 Year (730 Day) return for our products. 

For more Return information visit here

COVERAGE AREA

HIVE WARRANTY

HVAC Hive Warranty Information:

HVAC Hive is an authorized dealer for every product on our website. Every HVAC system and component comes with its original manufacturer's warranty, guaranteeing you receive a functional, quality product.

Our 5-Year Parts & Labor Warranty Promise: We go beyond the standard coverage. If a manufacturer's warranty doesn't cover your product for a full 5 years, HVAC Hive will extend both parts and labor warranty to complete the 5-year coverage period.

Example: If your manufacturer covers 2 years parts & labor, we'll cover an additional 3 years — giving you a full 5 years of parts and labor protection.

Warranty Coverage Includes:

  • Parts replacement for manufacturing defects
  • Labor costs for covered repairs
  • System malfunctions and component failures

Warranty Details:

  • Residential, light commercial, and full commercial warranties vary based on your usage
  • Specific warranty terms and coverage periods are listed on each product page
  • Both parts and labor are covered under our extended warranty program

Making a Warranty Claim: Contact our Worker Bee Support team at 1-888-712-2465 or karim@hvachive.com . We'll handle your claim quickly and professionally, covering both parts and labor costs. You can also contact the manufacturer directly if preferred.

Questions? Need help understanding your parts & labor warranty coverage? Our team is here to explain the details and ensure you're fully protected.

Contact US

Commercial HVAC PROS!

Unlock Installer Benefits Now:

  • ✓ Exclusive BULK Pricing
  • ✓ Limited Time Deals
  • ✓ Unmatched Service & Support
  • ✓ Technical support
  • ✓ Extended Warranty & Maintenance
"Their technical expertise in commercial HVAC systems is outstanding. From equipment selection to installation support, they provided everything we needed. The bulk pricing saved us thousands on our multi-building project, and their 24/7 technical support kept us running smoothly."
- Marcus R., HVAC Project Manager, 06/24

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How it works:

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4. You choose the best fit for your project

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We'll connect you with installers within 48 hours during business days

Frequently Asked Questions about MRCOOL 16FT 3/8" x 5/8" Flared Line Set Kit for 24K Olympus and Advantage Mini Split, MC16-3858

Most Frequently Asked Questions

The MRCOOL MC16-3858 flared line set kit typically includes pre-insulated copper refrigerant lines measuring 3/8" and 5/8" in diameter, flare fittings on both ends, protective insulation sleeves, and sometimes mounting hardware, designed for connecting compatible mini split indoor and outdoor units securely and efficiently.
Yes, a 16-foot line set is generally sufficient for most 24,000 BTU (24K) mini split installations, as it accommodates typical indoor-to-outdoor unit distances; however, actual length requirements depend on your specific installation layout and may vary.
The MRCOOL MC16-3858 3/8" x 5/8" flared line set is compatible with many MRCOOL mini split models that use 3/8" and 5/8" refrigerant lines, typically including larger single-zone and multi-zone units such as 24,000 BTU and above; always verify your specific model’s line size requirements in the installation manual to ensure compatibility.

Other Questions

Yes, the MRCOOL MC16-3858 flared line set is designed to carry both the refrigerant suction (larger diameter) and liquid (smaller diameter) lines between the indoor and outdoor units, making it suitable for heat pump mini split systems providing both heating and cooling.
Yes, professional installation is recommended for the MRCOOL MC16-3858 line set kit to ensure proper handling of refrigerant lines, secure flare connections, leak testing, and compliance with local codes for safe and efficient system operation.

Reviews

Express Free Shipping

Process orders within 1-2 days

Stress Free Returns

Get Covered for (730 days) Returns

Premum Quality

Top Tier Products, Even Better Customer Care

5 Year Warranty

We Believe In Our Products & Our Team