Yes absolutely, we always offer upgrades and retrofits when it is a safe and practical option. I currently have upgrades to convert 7410/2 pumps that are within 9 months old to Stream 6110 pumps, the same with converting 3000/2 to 6080 we always try to take care of our customers. The main thing is retrofits aren't universal, in the case of the pumps a pump older than 9 months and thats production not sales date cannot run relaibly with the conversion and you void the warranty trying to do so, Tunze products may look the same but litteraly every run has a slight design change to improve something and it may be very subtle but it is their, trust me as a repairman it gets to be a lot to know. Any skimmer with a /3 designation will be refittable and possibly farther back than that. I think the best analogy is the Volkswagen Beetle, 4235 parts, only one was the same on the last car as it was on the first, the hood gasket. Yet on the outside they all look pretty much the same.