Mini Split Line Set for DIY 4th Gen R-410A Systems

Mini Split Line Set for DIY 4th Gen R-410A Systems with Quick Connect Fittings and UV Protective Sleeve

$344.07

Air Handler Size 9K 12K or 18K (1/4" x 1/2") 24K or 36K (3/8" x 5/8")

Length 16 Ft 25 Ft 35 Ft 50 Ft

This mini split line set connects an outdoor condenser to an indoor air handler, helping simplify installation with pre-loaded R-410A refrigerant and Quick Connect fittings. Designed for MRCOOL DIY 4th Gen systems, it supports the specified DIY Single Zone, DIY Multizone and Central Ducted Mini Split Systems.

The kink-resistant lines bend for installation, while the included 3/4-inch UV protective insulation sleeve adds protection against sun exposure, weather and animal damage. Choose the connection size that matches your air handler and a one-piece length suited to the installation route. The 35-foot and 50-foot lengths also include a longer DIY Pro Cable communication wire.

Features

Quick Connect fittings require no cutting, brazing, vacuuming or charging for the specified compatible installation.
Pre-loaded R-410A refrigerant supports the line set's no-vac connection design.
Kink-resistant construction allows bending during installation.
A 3/4-inch UV protective insulation sleeve helps protect the lines outdoors.
One-piece lengths of 16, 25, 35 and 50 feet accommodate different installation routes.
The 35-foot and 50-foot lengths include a longer DIY Pro Cable communication wire.

Specifications

Product: Mini split refrigerant line set
System generation and refrigerant: DIY 4th Gen; R-410A
Compatible system families: MRCOOL DIY Single Zone, DIY Multizone and Central Ducted Mini Split Systems
9K, 12K or 18K air-handler connection size: 1/4 inch x 1/2 inch
24K or 36K air-handler connection size: 3/8 inch x 5/8 inch
One-piece lengths: 16 feet, 25 feet, 35 feet and 50 feet
Insulation sleeve: 3/4-inch UV protective insulation sleeve
Communication wire: Longer DIY Pro Cable communication wire included with 35-foot and 50-foot line sets
Included installation items: 75-foot vinyl tape, one neoprene clay, one wall sleeve cap, one wall sleeve, condensation drain hose, line set and zip ties
Extended runs: Two to three compatible line sets can be joined using a coupler for a total run up to 75 feet

Frequently Asked Questions

Which connection size should I choose for my air handler?

Choose the 1/4-inch x 1/2-inch line set for a 9K, 12K or 18K air handler, or the 3/8-inch x 5/8-inch line set for a 24K or 36K air handler. Match both the connection size and the specified system family before ordering.

Does this line set require vacuuming or refrigerant charging?

This pre-loaded R-410A line set uses no-vac Quick Connect fittings for the specified compatible systems. Its connections require no cutting, brazing, vacuuming or charging.

Which lengths include the longer communication wire?

The 35-foot and 50-foot line sets include a longer DIY Pro Cable communication wire in the box.

Can I extend the line set beyond one piece?

Two to three compatible DIY line sets can be connected using a coupler, up to a total length of 75 feet. The coupler is not listed among the included installation items.

Is this line set compatible with every mini split?

This line set is intended for the specified MRCOOL DIY 4th Gen R-410A systems, including DIY Single Zone, DIY Multizone and Central Ducted Mini Split Systems. Confirm your system generation, refrigerant and connection size before choosing a length.