Send the following on WhatsApp
Continue to ChatCan you seal the exterior of a HVAC wall unit? https://www.homecontractors.com/question-answer/can-you-seal-the-exterior-of-a-hvac-wall-unit/
Can you seal the exterior of a HVAC wall unit? https://www.homecontractors.com/question-answer/can-you-seal-the-exterior-of-a-hvac-wall-unit/