Is there any difference in quality/utility amongst the various oil filter block adapters available to allow oil temp/pressure sensors to be connected w/out drilling?

There are some generic ones out there as well as a Greddy unit:
http://www.nipponpower.com/product.phtml?p=141

and a Blox unit:
http://www.advancespeedshop.com/blox...5-p-10662.html

Are they both made of billet aluminum?

I currently am using one from Blox for oil temp and oil pressure (there was a very minor leak originally that the tech fixed and has been fine since). Readindgs with the HKS sensors connected to the Blox adapter are consistant. However, I am wondering if the Greddy unit is better/more durable or if it is the same as the Blox and or the generic ones?

thx!

 

My Greddy is doing a pretty good, consistent job....but I have nothing to compare it to since it the only oil sandwich I've ever used....however, I did have to re-thread the hole in the sandwich for the oil temp sensor because my sensor (Stri) was SAE while the Greddy hole was metric....just FYI...