72302-6
Zoro Select 72302-6 Plastic Chain, Yellow, 9 Ft Length, Gloss, 72302-6
I chose Altronic because their components fit my existing system without modifications.
GRAINGER APPROVED 72302-6 Plastic Chain ,9 ft L,Yellow 52YC06
A nice touch with this Honeywell INNCOM E528 is the easy-to-read temperature numbers.