Indian Springs A,B,C kits for chlorine

My department just purchased chlorine kits. Indian springs also sells the same kits (well they look the same) for other products. In the literature, Indian springs says you can not use chlorine kits on other products. I want to if I can buy other gaskets or what. Indian Springs just wants to sell my another kit. I think the kits would work for all products for a least a while until the problem can be solved by someone with the resources to contain each particular product.

Has anybody else have any ideas?