DURO LINEInsulated Line Sets

DURO LINE Steel Refrigerant Lineset: 25 ft Lg, 1/2 in Insulation, 3/8 in Plain Liquid

The DURO LINE Steel Refrigerant Lineset (SKU SLS387825, MPN SLS387825) is a 25 ft long insulated line set made of steel with steel connections. It features 1/2 in black elastomeric insulation and includes a 3/8 in…

SKU 3G-OTH-72041

Also listed as: SLS 387825 · SLS-387825

Brand

DURO LINE

Item

Steel Refrigerant Lineset: 25 ft Lg, 1/2 in Insulation, 3/8 in Plain Liquid

Local availability & support

Delivery: Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment: Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

DURO LINE

Manufacturer Part Number

SLS387825 

Type

Steel 

Insulation

1/2 in 

Plain Liquid

3/8 in 

Line Material

Steel 

Insulation Color

Black 

Connection Material

Steel 

Insulation Material

Elastomeric 

Technical Documents

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DURO LINE Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

Frequently Asked Questions

What is a DURO LINE Steel Refrigerant Lineset used for?

A DURO LINE Steel Refrigerant Lineset connects an outdoor condensing unit to an indoor evaporator coil in HVAC split systems. It carries refrigerant between components, with 1/2 in elastomeric insulation preventing condensation and energy loss on the suction line.

What are the specifications of the DURO LINE SLS387825 lineset?

The DURO LINE SLS387825 is a 25 ft long steel lineset with steel connections. It includes a 3/8 in plain liquid line and a suction line with 1/2 in black elastomeric insulation. The insulation material is elastomeric, and the line material is steel.

Where to buy DURO LINE refrigerant linesets worldwide?

3G Electric supplies DURO LINE refrigerant linesets worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver the SLS387825 or other lengths to your facility. Contact us for a quote and delivery timeline.

How to install a DURO LINE steel lineset?

Install the DURO LINE steel lineset by routing it between the outdoor unit and indoor coil, avoiding sharp bends. Use proper brazing techniques with nitrogen purge to prevent oxidation. Ensure the 1/2 in insulation remains intact and sealed at connections to prevent moisture ingress.

Used in

Common applications for DURO LINE

Residential split-system air conditioning — DURO LINE steel refrigerant line sets (e.g., SLS387825) for connecting outdoor condenser to indoor evaporator.

Light commercial heat pump installations — DURO LINE 50-ft line sets (e.g., SLS385850) for rooftop or ground-mounted units.

HVAC system retrofits in existing buildings — DURO LINE 25-ft line sets (e.g., SLS141250) for replacing old refrigerant lines.

New construction HVAC rough-in — DURO LINE 35-ft line sets (e.g., SLS387835) for pre-installing line sets before drywall.

Refrigeration system maintenance — DURO LINE 15-ft line sets (e.g., SLS141215) for short-run replacements in walk-in coolers.

DURO LINE Products

3G Electric supplies DURO LINE insulated line sets. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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