Affiliate Program Boostopia August 21, 2019 17:30 Updated Follow Learn more about our affiliate program here. Related articles Can I have different schedules for different filters? HVAC contractor partnerships Why was I sent a 5" filter when I ordered a 4"? I maintain more than one home/Property. Can I have more than one subscription? What carrier do you use for shipping? Comments 0 comments Article is closed for comments.