Ordered a replacement nasal pillow for my husband. Customer service via chat was excellent; I sent a picture of my replacement part and they responded right away and verified the part I ordered would fit my husband's CPAP equipment. Also, received second confirmation where the agent called me back (I opted for call back additionally from the online chat). The part was reasonably priced, however the express shipping costed more than the part (they offer free shipping, but the need was urgent). All in all, thank you 1800CPAP, so glad you're there because Apria healthcare sucks big time!