Why it matters
The DELLA 25 ft Line Set, 1/4 x 3/8 in is a pre-flared, insulated copper line set, 25 ft long, with a 1/4 in liquid line and a 3/8 in suction line. That pairing suits most 9,000 and 12,000 BTU systems (and some 18,000 BTU ones); always match both sizes to your condenser's service valves.
Most systems ship charged for a set line length, often 16 or 25 ft. Within that length no refrigerant needs adding; longer runs need extra charge added by a technician, and every open-flare connection needs a vacuum pulled before the valves are opened.
The listing gives dimensions of 300 inL x 0.38 inW, a shipping or unit weight of 10 pounds and copper construction.
Who it's for, and who should skip it
Good fit if
- Systems with 1/4 x 3/8 in valves
- Replacing a damaged line set
Look elsewhere if
- DIY quick-connect systems, which use their own sealed lines
Pros and cons
Pros
- 25 ft length
- 1/4 x 3/8 in pipe sizes
- Copper
Cons
- Needs flaring tools and a vacuum pump to install
- Extra refrigerant needed beyond the pre-charge length
Limitations to weigh
- Specifications are the maker's or seller's own; check fit against your system's manual.
Specifications
Every figure below comes from the source shown in brackets. Where the maker doesn't state something, we say so instead of estimating.
| Material | Copper | Retailer |
|---|---|---|
| Dimensions (seller) | 300"L x 0.38"W | Retailer |
| Product weight | 10 lb | Retailer |
| Pipe sizes | 0.25 inches | Retailer |
| Length | 300 inches | Retailer |
Alternatives worth comparing
More line sets and install kits we cover
- DELLA 16 ft Line Set, 1/4 x 5/8 in
- TADERUILY 33 ft Line Set, 1/4 x 3/8 in
- TADERUILY 50 ft Line Set, 1/4 x 3/8 in
- Wostore 50 ft Line Set, 1/4 x 1/2 in
All line sets and install kits, compared in one table · Every DELLA product we cover
Final verdict
A sensible line set, up to 25 ft for mini-split installs.
Where to buy
Our links open this exact model's product page. Prices and stock change; check what's included before you order.
Each button opens this exact model. We may earn a commission on tracked links; it never changes what we publish. Disclosure