Purchased new in 04/2016. Chiller was used on a 90 gallon system and has never been over worked. Runs excellent, never any issues with the digital controller or the temperature probe. Still have the three sets of hose connectors. Only thing is about a half inch of the nipple broke off one of the 3/4” connectors but still enough for a hose clamp to cinch down on. FYI..I did away with the hose connectors and hard plumbed the unit w/ 3/4” pvc into the system. Two 1/2” unions (only “FLO” brand fits) w/ 3/4-1/2 reducers were used and threaded them on the in / out nipples on the chiller. .