Ultra:
I've used some heavy duty "all around" that my father kept from a hot water home heating installation. This material is similar to the flexible stuff sold in the retail big box hardware stores. This difference is, this strapping is very difficult to bend by hand.
You might try one of the plumbing wholesalers that supply both the residential plumbers and the industrial trades. They may be able to supply what you are looking for.
I've used some heavy duty "all around" that my father kept from a hot water home heating installation. This material is similar to the flexible stuff sold in the retail big box hardware stores. This difference is, this strapping is very difficult to bend by hand.
You might try one of the plumbing wholesalers that supply both the residential plumbers and the industrial trades. They may be able to supply what you are looking for.