Look ma! No wrenches! No vacuum pumps! No gauge sets! No nitrogen tanks! No worries. For Airspool's Quick 'n' Easy, connect the indoor and outdoor units' refrigerant lines by simply hand-tightening the 1/4" and 3/8" self-sealing quick connectors. Why has this taken so long? Beats us, but that's water under the bridge, or leaking line sets in the rearview mirror, or something. Note that each line set needs to be hand-connected in only 1 place, not 2 places with wrenches and potential cross-threading. Yuck! Of the connection steps, this one takes the most amount of time but even for this step, it's probably only around 3 - 4 minutes. The other steps each take only a few seconds, so that's why we say that this whole system can be connected in around 5 minutes. Airspool Quick 'n' Easy is a true DIY solar-powered mini split. #diysolar #solarheatpump #diy #minisplit

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