Your mini heat split ’s line set – those copper pipes carrying the refrigerant – is vulnerable to the elements . Harm from lawnmowers equipment, pests, and even extreme conditions can cause cracks , https://heathtjuo647234.ageeksblog.com/40705765/why-you-should-protect-ductless-ac-with-decorative-line-set-covers-how-they-improve-appearance-protection