Buyers often mix three Nexnice products that look similar in photos: insulated pair coil, insulated single coil, and an insulated copper line set. They share soft-annealed copper and a factory jacket, but the RFQ fields are not the same.
What each product is
The insulated copper pair coil is a liquid and suction twin in one jacketed pair. Catalog sizes run 1/4×3/8 through 1/2×3/4 (OD × wall in mm as published), length 1~50 m. See Insulated Copper Pair Coil.
An insulated copper single coil is one insulated tube per coil. Catalog sizes run 1/4 (6.35×0.75) through 1 1/2, with a length of 1~50 m. See Insulated Copper Single Coil.
The insulated copper line set includes the pair coil plus selected installation accessories in one wholesale order. The refrigerant pair uses the same six sizes as the pair coil, length 1~50 m. Accessory lengths are confirmed in the RFQ. See Insulated Copper Line Set.
How to choose
| Need | Quote |
|---|---|
| Liquid + suction twin only | Pair coil |
| One insulated run (suction, liquid, or a single line) | Single coil |
| Pair plus drain hose, cable, wall sleeve, and other install parts | Line set |
Do not send only a horsepower label. Pair coil rows map to 1HP–5HP in the catalog, but the factory quotes from each OD × wall, not from HP alone.
Wholesale RFQ checklist
Send all of the following in one message:
- Company name
- Tube type: pair coil, single coil, or line set
- Tube size and OD × wall (mm) — for pair coil and line set, each tube
- Insulation jacket (PE or rubber) and thickness
- Length (1~50 m or your cut)
- Quantity (coils, metres, or sets)
- For line set: which accessories to include
- Packing, if you have a carton or label spec
Insulation thickness, packing, and quantity are RFQ fields.
Next step
Open the matching product page, copy the size row you need, and send the checklist above. Custom OD, wall, and length are available when you state them on the RFQ.