Thought about using this instead of the Gano . Based on ease of filter(screw off top) removal with Tefba vs removing Gano unit from hose and reinstalling. Anyone know cost ? Couldn't access info in internet so will call them. Also in general do both filters work well? Have a 1966 289 but when I pull a sample from overflow and let it sit can see some small particulates(rust) that settles out. New 3 row rad. 10 mos. old so want to protect it. If you think the Gano is better which one clear(possible stress cracks ?) unit or solid one. Thanks